NASA's ultra-quiet YO-3A acoustics research aircraft taxis out from the ramp at the Dryden Flight Research Center before a pilot checkout flight.

NASA's converted YO-3A observation plane, now used for acoustics research, touches down at Edwards Air Force Base following a pilot checkout flight.

The slow-speed wooden propeller and long wings are evident as NASA's YO-3A acoustics research aircraft performs a low-level flyover at Edwards Air Force Base.

NASA pilot Ed Lewis (rear) briefs NASA test pilot Dick Ewers on the flight instruments of NASA's YO-3A acoustics research aircraft prior to a checkout flight.

KENNEDY SPACE CENTER, FLA. - Research team members work with acoustic cable during underwater acoustic research being conducted in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Research team members work with acoustic cable during underwater acoustic research being conducted in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Researchers are positioned on one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Researchers are positioned on one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Researchers conduct underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Researchers utilize several types of watercraft to conduct underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Research team members roll out acoustic cable to the water's edge during underwater acoustic research being conducted in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Research team members roll out acoustic cable to the water's edge as others stand by in a watercraft during underwater acoustic research being conducted in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

Modern jet engines are loud, but they used to be much louder. NASA’s Glenn Research Center has been at the forefront of the nation’s efforts to reduce aircraft engine noise for over 70 years. During this time, the center has built an array of test facilities to carry out this work, culminating in the Aero-Acoustic Propulsion Laboratory (AAPL), a world-class noise-reduction research facility. The AAPL, referred to as “the dome,” contains multiple test rigs enclosed in a large, echo-free chamber. The unique 130-foot diameter and 65-foot-high hemispherical structure stands out on Glenn’s campus. Its triangular sections make it appear like a golf ball rising from the ground. The interior is covered in spiky, fiberglass sound-dampening wedges and an overhead array of microphones that capture engine noise data.

A NASA TG-14 glider aircraft is prepared for flight at NASA’s Armstrong Flight Research Center in Edwards, California, in support of the agency’s Quesst mission. The aircraft is equipped with onboard microphones to capture sonic boom noise generated during rehearsal flights, helping researchers measure the acoustic signature of supersonic aircraft closer to the ground.

KENNEDY SPACE CENTER, FLA. - A research team member aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin releases some of the project's equipment into the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Research team members aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin secure some of the project's equipment back into the vessel. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Justin Manley, of the National Oceanic and Atmospheric Administration, is a member of the research team conducting underwater acoustic research in the Launch Complex 39 turn basin near Launch Pad 39A. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Researchers utilize several types of watercraft to conduct underwater acoustic research in the Launch Complex 39 turn basin near Launch Pad 39A. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Research team members aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin prepare to release some of the project's equipment into the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Research team members aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin release some of the project's equipment into the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Dr. Grant Gilmore (left), Dynamac Corp., talks to another member of the research team conducting underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Research team members aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin retrieve some of the project's equipment from the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - A research team member aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin prepares some of the project's equipment for placement in the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Research team members take their places on one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Research team members aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin monitor some of the project's equipment just released into the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - A research team member aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin lifts some of the project's equipment from the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

KENNEDY SPACE CENTER, FLA. - Joe Bartoszek, NASA, is a member of the research team conducting underwater acoustic research in the Launch Complex 39 turn basin near Launch Pad 39A. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

Winter Season Weather Scenic Photos of NASA Glenn Research Center, GRC, Acoustic Dome for Archive and Instagram; Aero-Acoustic Propulsion Laboratory, AAPL, Exterior

KENNEDY SPACE CENTER, FLA. - Dr. Grant Gilmore, Dynamac Corp., utilizes a laptop computer to explain aspects of the underwater acoustic research under way in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.

New testing is underway in the Aero-Acoustic Propulsion Laboratory (AAPL) at NASA's Glenn Research Center. The research focuses on a model called the Highly Variable Cycle Exhaust System -- a 0.17 scale model of an exhaust system that will operate at subsonic, transonic and supersonic exhaust speeds in a future supersonic business jet. The model features ejector doors used at different angles. Researchers are investigating the impact of these ejectors on the resulting acoustic radiation. Here, Steven Sedensky, a mechanical engineer with Jacobs Sverdrup, takes measurements of the ejector door positions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

The ogive panels protect Orion's crew module from harsh acoustic conditions at launch and in case of an abort. Acoustic testing of the ogive hatch starts today at Space Power Facility at NASA Glenn Research Center's Plum Brook station in Sandusky, Ohio takes place on July 19, 2017. The ogive is installed in the Reverberant Acoustic Chamber where it will be blasted with 161 db of sound to simulate launch conditions.

Acoustic Casing Treatment Testing Completed in the W-8 Single Stage Axial Compressor Facility at NASA Glenn. Four different over-the-rotor acoustic casing treatment concepts were tested along with two baseline configurations. Testing included steady-aerodynamic measurements of fan performance, hotfilm turbulence measurements, and inlet acoustic measurements with an in-duct array.

Acoustic Casing Treatment Testing Completed in the W-8 Single Stage Axial Compressor Facility at NASA Glenn. Four different over-the-rotor acoustic casing treatment concepts were tested along with two baseline configurations. Testing included steady-aerodynamic measurements of fan performance, hotfilm turbulence measurements, and inlet acoustic measurements with an in-duct array.

Claudia Sales, NASA’s acting X-59 deputy chief engineer and airworthiness certification lead for the quiet supersonic research aircraft, supports ground testing for Acoustic Research Measurements (ARM) flights. The test campaign to evaluate technologies that reduce aircraft noise was conducted at NASA’s Armstrong Flight Research Center in Edwards, California, in 2018.

NASA Ames Research Center Unitary Plan Wind Tunnel Complex N-227 - just pior to acoustic cover being added (image shows 6ft w.t. in forground)

iss067e183752_alt (July 8, 2022) --- Expedition 67 Flight Engineer and ESA (European Space Agency) astronaut Samantha Cristoforetti participates in the Acoustic Diagnostics study. The investigation explores whether equipment noise levels and the microgravity environment may create possible adverse effects on astronaut hearing. The acoustic data will help researchers understand the International Space Station’s sound environment and may inform countermeasures to protect crew hearing.

iss067e183800 (July 8, 2022) --- Expedition 67 Flight Engineer and NASA astronaut Kjell Lindgren participates in the Acoustic Diagnostics study. The investigation explores whether equipment noise levels and the microgravity environment may create possible adverse effects on astronaut hearing. The acoustic data will help researchers understand the International Space Station’s sound environment and may inform countermeasures to protect crew hearing.

iss067e183734 (July 8, 2022) --- Expedition 67 Flight Engineer and ESA (European Space Agency) astronaut Samantha Cristoforetti wears a microphone on her right shoulder for the Acoustic Diagnostics study. The investigation explores whether equipment noise levels and the microgravity environment may create possible adverse effects on astronaut hearing. The acoustic data will help researchers understand the International Space Station’s sound environment and may inform countermeasures to protect crew hearing.

The SpaceX Crew Dragon spacecraft is in the anechoic chamber for electromagnetic interference testing on May 20, 2018, at NASA's Kennedy Space Center in Florida. The Crew Dragon will be shipped to the agency's Plum Brook Station test facility at Glenn Research City in Cleveland, Ohio, for testing in the Reverberant Acoustic Test Facility, the world's most powerful acoustic test chamber. Crew Dragon is being prepared for its first uncrewed test flight, targeted for August 2018.

iss067e183618_alt (July 8, 2022) --- Expedition 67 Flight Engineer and ESA (European Space Agency) astronaut Samantha Cristoforetti wears a microphone on her right shoulder for the Acoustic Diagnostics study. The investigation explores whether equipment noise levels and the microgravity environment may create possible adverse effects on astronaut hearing. The acoustic data will help researchers understand the International Space Station’s sound environment and may inform countermeasures to protect crew hearing.

Title: W-8 Fan Acoustic Casing Treatment Test on the Source Diagnostic Test Rotor Alone Hardware Program: Advanced Air Vehicles Program (AAVP) Project: Advanced Air Transport Technology (AATT) Sub-project: Aircraft Noise Reduction (ANR)   Weekly Highlight: ·         Acoustic Casing Treatment Testing Completed in the W-8 Single Stage Axial Compressor Facility: Testing of Acoustic Casing Treatments on the Source Diagnostic Test (SDT) rotor alone hardware which had begun in early January was completed on Thursday, February 16th. Four different over-the-rotor acoustic casing treatment concepts were tested along with two baseline configurations. Testing included steady-aerodynamic measurements of fan performance, hotfilm turbulence measurements, and inlet acoustic measurements with an in-duct array. These measurements will be used to assess the aerodynamic and acoustic impact of fan acoustic casing treatments on a high bypass ratio fan at TRL 3. This test was the last of 3 planned tests of potential over-the-rotor acoustic casing treatments. The first treatment test was completed in the Normal Incidence Tube (NIT) at Langley Research Center (LaRC) in Fall 2015 and the second was completed on the Advanced Noise Control Fan (ANCF) in the Aero-Acoustic Propulsion Laboratory (AAPL) in Winter 2016. This work is supported by the Aircraft Noise Reduction (ANR) subproject of the Advanced Air Transport Technology (AATT) Project. (POC: LTV/ Rick Bozak 3-5160)

Lockheed YO-3A (USA 69-18010 NASA 718) TEST FLIGHT AT EDWARDS AIRFORCE BASE (FLIGHT RESEARCH CENTER). Rotorcraft Research. Acoustics Research Team from left to right: Don Boxwell, Fred Schmitz, Bob Williams, Lee Jones, Bob George, Vance Duffy. NASA SP Flight Research at Ames: 57 Years of Development and Validation of Aeronautical Technology Fig. 142

Claudia Sales, NASA’s acting X-59 deputy chief engineer and airworthiness certification lead for the quiet supersonic research aircraft, stands in front of a Gulfstream G-III, also known as Subsonic Research Aircraft Testbed (SCRAT). Sales supported ground testing as test conductor for Acoustics Research Measurements (ARM) flights at NASA’s Armstrong Research Flight Center in Edwards, California, in 2018.

The augmentor wing concept was introduced during the early 1960s to enhance the performance of vertical and short takeoff (VSTOL) aircraft. The leading edge of the wing has full-span vertical flaps, and the trailing edge has double-slotted flaps. This provides aircraft with more control in takeoff and landing conditions. The augmentor wing also produced lower noise levels than other VSTOL designs. In the early 1970s Boeing Corporation built a Buffalo C-8A augmentor wing research aircraft for Ames Research Center. Researches at Lewis Research Center concentrated their efforts on reducing the noise levels of the wing. They initially used small-scale models to develop optimal nozzle screening methods. They then examined the nozzle designs on a large-scale model, seen here on an external test stand. This test stand included an airflow system, nozzle, the augmentor wing, and a muffler system below to reduce the atmospheric noise levels. The augmentor was lined with noise-reducing acoustic panels. The Lewis researchers were able to adjust the airflow to simulate conditions at takeoff and landing. Once the conditions were stabilized they took noise measurements from microphones placed in all directions from the wing, including an aircraft flying over. They found that the results coincided with the earlier small-scale studies for landing situations but not takeoffs. The acoustic panels were found to be successful.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

Engineers and technicians moved the Orion service module test article into the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio on April 8, 2016. Acoustic testing is scheduled to begin April 18. The blue structure sitting on top of the test article is a mass simulator that represents the Orion crew module...The test article will be blasted with at least 152 decibels and 20-10,000 hertz of sound pressure and vibration to simulate the intense sounds the Orion service module will be subjected to during launch and ascent into space atop the agency’s Space Launch System (SLS) rocket. This is part of a series of tests to verify the structural integrity of Orion’s service module for Exploration Mission-1, the spacecraft’s first flight atop SLS...Provided by ESA (European Space Agency) and built by Airbus Defence and Space, the service module will power, propel and cool the vehicle and also supply it with air and water.

The Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) observatory suspended for acoustic testing in the acoustic test facility at NASA's Goddard Space Flight Center in Greenbelt, Maryland on April 17th, 2023. PACE's unprecedented spectral coverage will provide the first-ever global measurements designed to identify phytoplankton community composition. The mission will make global ocean color measurements, using the Ocean Color Instrument (OCI), to provide extended data records on ocean ecology and global biogeochemistry along with polarimetry measurements, using the Spectro-polarimeter for Planetary Exploration (SPEXone) and the Hyper Angular Research Polarimeter (HARP2) to provide extended data records on clouds and aerosols. The Earth-observing satellite mission, built at Goddard Space Flight Center in Greenbelt, MD, will continue and advance observations of global ocean color, biogeochemistry, and ecology, as well as the carbon cycle, aerosols and clouds.

The Fan Noise Test Facility built at the Lewis Research Center to obtain far-field noise data for the National Aeronautics and Space Administration (NASA) and General Electric Quiet Engine Program. The engine incorporated existing noise reduction methods into an engine of similar power to those that propelled the Boeing 707 or McDonnell-Douglas DC-8 airliner. The new the low-bypass ratio turbofan engines of the 1960s were inherently quieter than their turbojet counterparts, researchers had a better grasp of the noise generation problem, and new acoustic technologies had emerged. Lewis contracted General Electric in 1969 to build and aerodynamically test three experimental engines with 72-inch diameter fans. The engines were then brought to Lewis and tested with an acoustically treated nacelle. This Fan Noise Test Facility was built off of the 10- by 10-Foot Supersonic Wind Tunnel’s Main Compressor and Drive Building. Lewis researchers were able to isolate the fan’s noise during these initial tests by removing the core of the engine. The Lewis test rig drove engines to takeoff tip speeds of 1160 feet per second. The facility was later used to test a series of full-scale model fans and fan noise suppressors to be used with the quiet engine. NASA researchers predicted low-speed single-stage fans without inlet guide vanes and with large spacing between rotors and stators would be quieter. General Electric modified a TF39 turbofan engine by removing the the outer protion of the fan and spacing the blade rows of the inner portion. The tests revealed that the untreated version of the engine generated less noise than was anticipated, and the acoustically treated nacelle substantially reduced engine noise.

Dr. Forrest Carpenter, left, principal investigator for the third phase of CarpetDIEM, Carpet Determination in Entirety Measurements flights, monitors a test from one of the control rooms at NASA’s Armstrong Flight Research Center. Next to Carpenter is Brian Strovers, chief engineer for Commercial Supersonic Technology. The third phase of CarpetDIEM tested logistics and upgraded ground recording systems in preparation for the acoustic validation phase of the Quesst mission.

One of multiple microphone stations used in the CarpetDIEM flight series, which gave researchers valuable lessons learned in preparations to deploy a similar array for the quiet supersonic X-59. Prior to community overflights, X-59 will undergo an acoustic validation phase, during which NASA will deploy the array of specially-configured microphones to measure the X-59’s thumps, in order to verify that they are as quiet as predicted.

The Quiet Electric Engine V1 (QUEEN V1) experiment that was performed in the NASA GRC Acoustical Testing Laboratory (ATL). Equipment is installed in the anechoic chamber and in the adjacent control room. In response to the pervasive health and environmental problems associated with aviation noise and air pollution, NASA’s Quiet Electric Engine (QUEEN) team is working to increase the peace and quiet in the world by researching ways to make engines for large single-aisle aircraft safer, cleaner, and quieter.

A NASA F/A-18 is towed to the apron at NASA's Armstrong Flight Research Center in Edwards, California during sunrise over Rogers Dry Lake. The F/A-18 was used to test a transmitter for an air navigation system, called the Airborne Location Integrating Geospatial Navigation System, or ALIGNS. This system, designed to allow pilots to position their aircraft at precise distances to each other, will be critical for acoustic validation efforts of NASA's next supersonic X-plane, the X-59 Quiet SuperSonic Technology.

The Quiet Electric Engine V1 (QUEEN V1) experiment that was performed in the NASA GRC Acoustical Testing Laboratory (ATL). Equipment is installed in the anechoic chamber and in the adjacent control room. In response to the pervasive health and environmental problems associated with aviation noise and air pollution, NASA’s Quiet Electric Engine (QUEEN) team is working to increase the peace and quiet in the world by researching ways to make engines for large single-aisle aircraft safer, cleaner, and quieter.

The Quiet Electric Engine V1 (QUEEN V1) experiment that was performed in the NASA GRC Acoustical Testing Laboratory (ATL). Equipment is installed in the anechoic chamber and in the adjacent control room. In response to the pervasive health and environmental problems associated with aviation noise and air pollution, NASA’s Quiet Electric Engine (QUEEN) team is working to increase the peace and quiet in the world by researching ways to make engines for large single-aisle aircraft safer, cleaner, and quieter.

iss066e136658 (Feb. 7, 2022) --- NASA astronaut and Expedition 66 Flight Engineer Mark Vande Hei conducts research operations for the Ultrasonic Tweezers study using acoustics to manipulate objects remotely and without physical contact. Vande Hei was assisting ESA (European Space Agency) Flight Engineer Matthias Maurer (out of frame) during the experiment that explores using ultrasonics to trap and isolate objects to study samples and avoid contamination on planetary surfaces.

The Quiet Electric Engine V1 (QUEEN V1) experiment that was performed in the NASA GRC Acoustical Testing Laboratory (ATL). Equipment is installed in the anechoic chamber and in the adjacent control room. In response to the pervasive health and environmental problems associated with aviation noise and air pollution, NASA’s Quiet Electric Engine (QUEEN) team is working to increase the peace and quiet in the world by researching ways to make engines for large single-aisle aircraft safer, cleaner, and quieter.

The Quiet Electric Engine V1 (QUEEN V1) experiment that was performed in the NASA GRC Acoustical Testing Laboratory (ATL). Equipment is installed in the anechoic chamber and in the adjacent control room. In response to the pervasive health and environmental problems associated with aviation noise and air pollution, NASA’s Quiet Electric Engine (QUEEN) team is working to increase the peace and quiet in the world by researching ways to make engines for large single-aisle aircraft safer, cleaner, and quieter.

Snapshot from a simulation run on the Pleiades supercomputer. It depicts a fluctuating pressure field on aircraft nose landing gear and fuselage surfaces. The simulation helped scientists better understand the effects of landing gear and acoustic noise. The goal of the study was to improve the current understanding of aircraft nose landing gear noise, which will lead to quieter, more efficient airframe components for future aircraft designs. The visualization was produced with help from the NAS Data Analysis & Visualization group. Investigator: Mehdi Khorrami, NASA Langley Research Center.

The Quiet Electric Engine V1 (QUEEN V1) experiment that was performed in the NASA GRC Acoustical Testing Laboratory (ATL). Equipment is installed in the anechoic chamber and in the adjacent control room. In response to the pervasive health and environmental problems associated with aviation noise and air pollution, NASA’s Quiet Electric Engine (QUEEN) team is working to increase the peace and quiet in the world by researching ways to make engines for large single-aisle aircraft safer, cleaner, and quieter. Posing with the experiment is aerospace engineer, Jonathan M. Goodman.

KENNEDY SPACE CENTER, FLA. - A view from inside the pilot house of the Liberty Star overlooks the stern where a team secures lines to underwater research equipment being used on an expedition to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks. The banks are a marine protected area, 20 miles offshore of the east coast of Florida. The equipment includes an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS), originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries. The ship departed from Port Canaveral April 29 and will return May 9.

KENNEDY SPACE CENTER, FLA. - Underwater research equipment is prepared for immersion from the Liberty Star, the NASA Space Shuttle support ship operated by United Space Alliance. It is being used on an undersea expedition to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks, a marine protected area, 20 miles offshore of the east coast of Florida. The equipment includes an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS), originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries. The ship departed from Port Canaveral April 29 and will return May 9.

KENNEDY SPACE CENTER, FLA. - Underwater research equipment slowly sinks into the water. An undersea expedition is underway to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks, a marine protected area, 20 miles offshore of the east coast of Florida. The equipment includes an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS), originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries and will take place onboard the Liberty Star. The ship departed from Port Canaveral April 29 and will return May 9.

The NASA C-140 JetStar research aircraft (top) is followed by a NASA Learjet equipped with acoustic sensors during one of several tests of advanced propellors mounted on the vertical pylon atop the JetStar's fuselage. Several advanced prop designs were tested on the JetStar in 1982 by NASA's Dryden Flight Research Facility (DFRF), Edwards, California, to study the effects of noise created by propellors on aircraft structures and cabin interiors. To assess possible noise problems with the subscale turbofan, DFRF technicians mounted microphones on both the JetStar and the Learjet chase plane. DFRF then made measurements at close range and at longer distances. The data enabled structural changes and flightpath modifications.

KENNEDY SPACE CENTER, FLA. - A team onboard the Liberty Star, the NASA Space Shuttle support ship operated by United Space Alliance, get ready to lower underwater research equipment into the water. An undersea expedition is underway to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks, a marine protected area, 20 miles offshore of the east coast of Florida. The equipment includes an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS), originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries. The ship departed from Port Canaveral April 29 and will return May 9.

KENNEDY SPACE CENTER, FLA. - The Liberty Star makes its way along the Oculina Banks, a marine protected area, 20 miles offshore of the east coast of Florida. The ship is taking part in an undersea expedition to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks. Equipment being used for the research includes an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS), originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries. The ship departed from Port Canaveral April 29 and will return May 9.

The Aero-Acoustic Propulsion Laboratory (AAPL) photographed on October 24, 2024 as seen from above. This facility provides world class testing for aircraft propulsion acoustic noise reduction and is 65 ft high by 130 ft in diameter. Photo Credit: (NASA/Sara Lowthian-Hanna)

KENNEDY SPACE CENTER, FLA. - A view inside the pilot house of the Liberty Star. The ship is taking part in an undersea expedition to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks. The banks are a marine protected area, 20 miles offshore of the east coast of Florida. The equipment includes an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS), originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries. The ship departed from Port Canaveral April 29 and will return May 9.

KENNEDY SPACE CENTER, FLA. - John Reed, co-principal investigator, Harbor Branch Oceanographic Institution, points to the Oculina Banks, a marine protected area, 20 miles offshore of the east coast of Florida. A team of scientists will deploy an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS), on an undersea expedition to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks. The PAMS was originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries and will take place onboard the Liberty Star. The ship departed from Port Canaveral April 29 and will return May 9.

KENNEDY SPACE CENTER, FLA. - Underwater equipment is checked on the deck of the Liberty Star, which will be the site of an undersea expedition to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks, a marine protected area, 20 miles offshore of the east coast of Florida. A team of scientists will deploy an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS), originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries. The ship departed from Port Canaveral April 29 and will return May 9.

Aerospace engineer Larry Cliatt, Quesst Phase 2 Sub-Project Manager and technical lead for the acoustic validation phase of the Quesst mission, sets up a ground recording system in the California desert. The Quesst mission recently completed testing of operations and equipment to be used in recording the sonic thumps of the X-59. The testing was the third phase of Carpet Determination in Entirety Measurements flights, called CarpetDIEM for short. An F-15 and an F-18 from NASA’s Armstrong Flight Research Center created sonic booms, both loud and soft, to verify the operations of ground recording systems spread out across 30 miles of open desert.

KENNEDY SPACE CENTER, FLA. - Pictured is equipment that will be used on an undersea expedition to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks, a marine protected area, 20 miles offshore of the east coast of Florida. Scientists on the team will be deploying an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS). Dr. Grant Gilmore was co-principle investigator of the PAMS, originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries and will take place onboard the Liberty Star. The ship departed from Port Canaveral April 29 and will return May 9.

KENNEDY SPACE CENTER, FLA. - Dr. Grant Gilmore sits alongside some of the equipment that will be used on an undersea expedition to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks, a marine protected area, 20 miles offshore of the east coast of Florida. Scientists on the team will be deploying an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS). Gilmore is co-principle investigator of the PAMS, originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries and will take place onboard the Liberty Star. The ship departed from Port Canaveral April 29 and will return May 9.

A 3 mm-diameter droplet of aluminum oxide, heated to 2371 deg. C (4,300 deg. F), is suspended in midair by six acoustic transducers. A gas jet (from the nozzle below the drop) helps position the drop for study, and a 500-watt laser melts the sample. Glasses made from aluminum oxide are highly promising for optical transmission and other properties. They are also highly reactive when molten. Containerless processing allows studies of how to form amorphous (glassy) rather than crystalline metal oxides. Credit: Bill Jellison, Containerless Research, Inc.

KENNEDY SPACE CENTER, FLA. - Pictured is a piece of equipment that will be used on an undersea expedition to characterize the condition of the deep-sea coral reefs and reef fish populations in the Oculina Banks, a marine protected area, 20 miles offshore of the east coast of Florida. Scientists on the team will be deploying an underwater robot, a seafloor sampler, and the Passive Acoustic Monitoring System (PAMS). Dr. Grant Gilmore was co-principle investigator of the PAMS, originally developed by NASA to monitor the impact of rocket launches on wildlife refuge lagoons at KSC. The research is sponsored by NOAA Fisheries and will take place onboard the Liberty Star. The ship departed from Port Canaveral April 29 and will return May 9.