This graphic provides a detailed overview of the makeup of Boeing’s CST-100 Starliner spacecraft, as well as the United Launch Alliance Atlas V rocket.
Early Chinese rockets were used in warfare and celebrations. In fact, the origin of the rocket is shown simply in these Chinese characters. They stand for both "rocket" and "fire arrow."
Members of the NASA Advisory Council toured the Space Station Processing Facility high bay at Kennedy Space Center in Florida on Oct. 29, 2019. In view is the interim cryogenic propulsion stage for the Space Launch System rocket. The NASA Advisory Council provides the NASA administrator with counsel and advice on programs and issues of importance to the agency. Committee members conduct fact-finding sessions throughout the year in an effort to gain a broad understanding of current NASA issues and future mission implementation plans.
John C. Stennis Space Center hosted outreach activities at the Walmart Supercenter Store in Picayune on Nov. 3, focusing on helping area residents learn about NASA and Stennis' role in the future of space exploration. Visitors could learn about living and working in space, participate in hands-on educational activities, discover facts about the International Space Station, view images from NASA's latest rover mission to Mars and find out about rocket engine test work at Stennis Space Center.
KENNEDY SPACE CENTER, FLA. -- Kennedy Space Center's Advanced Systems Development organization conducts a test of an unmanned robotic submersible to evaluate its ability to assist divers in the task of recovering spent solid rocket boosters (SRBs) in the Atlantic Ocean. NASA and contractor Deep Sea Systems of Falmouth, Mass., demonstrated the Max Rover submersible at Port Canaveral's Trident pier. The fact-finding tests are part of NASA's effort to make SRB recovery operations safer and less strenuous
KENNEDY SPACE CENTER, FLA. -- Kennedy Space Center's Advanced Systems Development organization conducts a test of an unmanned robotic submersible to evaluate its ability to assist divers in the task of recovering spent solid rocket boosters (SRBs) in the Atlantic Ocean. NASA and contractor Deep Sea Systems of Falmouth, Mass., demonstrated the Max Rover submersible at Port Canaveral's Trident pier. The fact-finding tests are part of NASA's effort to make SRB recovery operations safer and less strenuous
KENNEDY SPACE CENTER, FLA. -- Kennedy Space Center's Advanced Systems Development organization conducts a test of an unmanned robotic submersible to evaluate its ability to assist divers in the task of recovering spent solid rocket boosters (SRBs) in the Atlantic Ocean. NASA and contractor Deep Sea Systems of Falmouth, Mass., demonstrated the Max Rover submersible at Port Canaveral's Trident pier. The fact-finding tests are part of NASA's effort to make SRB recovery operations safer and less strenuous
Painted markings on the service structure of Site 1 at the Baikonur Cosmodrome seen on Friday, July 19, 2019, show the milestones accomplised by launches from the historic pad. The markings commemorate the first launch from the pad on May 15, 1957, the launch of Sputnik 1 on October 4, 1957, the launch of the first human to orbit Earth, Yuri Gagarin, on April 12, 1961, and the fact that the pad has been the site of over 500 launches of various rockets since its construction. Expedition 60 Soyuz Commander Alexander Skvortsov of Roscosmos, flight engineer Andrew Morgan of NASA, and flight engineer Luca Parmitano of ESA (European Space Agency) launched from the historic pad to begin their mission to the International Space Station at 12:28 p.m. Eastern time (9:28 p.m. Baikonur time) on July 20th. Photo Credit: (NASA/Joel Kowsky)
Technicians adjust the rocket motor during the attachment of the escape tower to the Mercury capsule prior to assembly with Little Joe launcher, August 20, 1959. Joseph Shortal wrote (vol. 3., p. 33): The escape tower and rocket motors were taken from the Mercury capsule production. The tower is shown being attached to the capsule.... The escape rocket was a Grand Central 1-KS-52000 motor with three canted nozzles. The tower-jettison motor was an Atlantic Research Corp. 1.4-KS-785 motor. This was the same design tested in a beach abort test...and had the offset thrust line as used in the beach abort test to insure that the capsule would get away from the booster in an emergency. The escape system weighed 1,015 pounds, including 236 pounds of ballast for stability. The Little Joe booster was assembled at Wallops on its special launcher in a vertical attitude. It is shown in the on the left with the work platform in place. The launcher was located on a special concrete slab in Launching Area 1. The capsule was lowered onto the booster by crane.... After the assembly was completed, the scaffolding was disassembled and the launcher pitched over to its normal launch angle of 80 degrees.... Little Joe had a diameter of 80 inches and an overall length, including the capsule and escape tower of 48 feet. The total weight at launch was about 43,000 pounds. The overall span of the stabilizing fins was 21.3 feet. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition.
Technicians adjust the rocket motor during the attachment of the escape tower to the Mercury capsule prior to assembly with Little Joe launcher, August 20, 1959. Joseph Shortal wrote (vol. 3., p. 33): The escape tower and rocket motors were taken from the Mercury capsule production. The tower is shown being attached to the capsule.... The escape rocket was a Grand Central 1-KS-52000 motor with three canted nozzles. The tower-jettison motor was an Atlantic Research Corp. 1.4-KS-785 motor. This was the same design tested in a beach abort test...and had the offset thrust line as used in the beach abort test to insure that the capsule would get away from the booster in an emergency. The escape system weighed 1,015 pounds, including 236 pounds of ballast for stability. The Little Joe booster was assembled at Wallops on its special launcher in a vertical attitude. It is shown in the on the left with the work platform in place. The launcher was located on a special concrete slab in Launching Area 1. The capsule was lowered onto the booster by crane.... After the assembly was completed, the scaffolding was disassembled and the launcher pitched over to its normal launch angle of 80 degrees.... Little Joe had a diameter of 80 inches and an overall length, including the capsule and escape tower of 48 feet. The total weight at launch was about 43,000 pounds. The overall span of the stabilizing fins was 21.3 feet. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition.
Technicians adjust the rocket motor during the attachment of the escape tower to the Mercury capsule prior to assembly with Little Joe launcher, August 20, 1959. Joseph Shortal wrote (vol. 3., p. 33): The escape tower and rocket motors were taken from the Mercury capsule production. The tower is shown being attached to the capsule.... The escape rocket was a Grand Central 1-KS-52000 motor with three canted nozzles. The tower-jettison motor was an Atlantic Research Corp. 1.4-KS-785 motor. This was the same design tested in a beach abort test...and had the offset thrust line as used in the beach abort test to insure that the capsule would get away from the booster in an emergency. The escape system weighed 1,015 pounds, including 236 pounds of ballast for stability. The Little Joe booster was assembled at Wallops on its special launcher in a vertical attitude. It is shown in the on the left with the work platform in place. The launcher was located on a special concrete slab in Launching Area 1. The capsule was lowered onto the booster by crane.... After the assembly was completed, the scaffolding was disassembled and the launcher pitched over to its normal launch angle of 80 degrees.... Little Joe had a diameter of 80 inches and an overall length, including the capsule and escape tower of 48 feet. The total weight at launch was about 43,000 pounds. The overall span of the stabilizing fins was 21.3 feet. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition.
Technicians adjust the rocket motor during the attachment of the escape tower to the Mercury capsule prior to assembly with Little Joe launcher, August 20, 1959. Joseph Shortal wrote (vol. 3., p. 33): The escape tower and rocket motors were taken from the Mercury capsule production. The tower is shown being attached to the capsule.... The escape rocket was a Grand Central 1-KS-52000 motor with three canted nozzles. The tower-jettison motor was an Atlantic Research Corp. 1.4-KS-785 motor. This was the same design tested in a beach abort test...and had the offset thrust line as used in the beach abort test to insure that the capsule would get away from the booster in an emergency. The escape system weighed 1,015 pounds, including 236 pounds of ballast for stability. The Little Joe booster was assembled at Wallops on its special launcher in a vertical attitude. It is shown in the on the left with the work platform in place. The launcher was located on a special concrete slab in Launching Area 1. The capsule was lowered onto the booster by crane.... After the assembly was completed, the scaffolding was disassembled and the launcher pitched over to its normal launch angle of 80 degrees.... Little Joe had a diameter of 80 inches and an overall length, including the capsule and escape tower of 48 feet. The total weight at launch was about 43,000 pounds. The overall span of the stabilizing fins was 21.3 feet. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition.
Technicians adjust the rocket motor during the attachment of the escape tower to the Mercury capsule prior to assembly with Little Joe launcher, August 20, 1959. Joseph Shortal wrote (vol. 3., p. 33): The escape tower and rocket motors were taken from the Mercury capsule production. The tower is shown being attached to the capsule.... The escape rocket was a Grand Central 1-KS-52000 motor with three canted nozzles. The tower-jettison motor was an Atlantic Research Corp. 1.4-KS-785 motor. This was the same design tested in a beach abort test...and had the offset thrust line as used in the beach abort test to insure that the capsule would get away from the booster in an emergency. The escape system weighed 1,015 pounds, including 236 pounds of ballast for stability. The Little Joe booster was assembled at Wallops on its special launcher in a vertical attitude. It is shown in the on the left with the work platform in place. The launcher was located on a special concrete slab in Launching Area 1. The capsule was lowered onto the booster by crane.... After the assembly was completed, the scaffolding was disassembled and the launcher pitched over to its normal launch angle of 80 degrees.... Little Joe had a diameter of 80 inches and an overall length, including the capsule and escape tower of 48 feet. The total weight at launch was about 43,000 pounds. The overall span of the stabilizing fins was 21.3 feet. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition.
Assembling the Little Joe capsules. The capsules were manufactured in-house by Langley technicians. Three capsules are shown here in various stages of assembly. The escape tower and rocket motors shown on the completed capsule would be removed before shipping and finally assembly for launching at Wallops Island. Joseph Shortal wrote (vol. 3, p. 32): Design of the Little Joe capsules began at Langley before McDonnell started on the design of the Mercury capsule and was, therefore, a separate design. Although it was not designed to carry a man, it did have to carry a monkey. It had to meet the weight and center of gravity requirements of Mercury and withstand the same aerodynamic loads during the exit trajectory. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. Project Mercury: Little Joe: Boilerplate Mercury spacecraft undergo fabrication at the shops of the Langley Research Center. They will launched atop Little Joe rockets to test the spacecraft recovery systems. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition. L59-4947 Technicians prepare a Little Joe launch vehicle prototype for the Mercury space program, 1959. Photograph published in Winds of Change, 75th Anniversary NASA publication, page 76, by James Schultz
Technicians attach the escape tower to the Mercury capsule prior to assembly with Little Joe launcher, August 20, 1959. Joseph Shortal describe this as follows (vol. 3., p. 33): The escape tower and rocket motors were taken from the Mercury capsule production. The tower is shown being attached to the capsule.... The escape rocket was a Grand Central 1-KS-52000 motor with three canted nozzles. The tower-jettison motor was an Atlantic Research Corp. 1.4-KS-785 motor. This was the same design tested in a beach abort test...and had the offset thrust line as used in the beach abort test to insure that the capsule would get away from the booster in an emergency. The escape system weighed 1,015 pounds, including 236 pounds of ballast for stability. The Little Joe booster was assembled at Wallops on its special launcher in a vertical attitude. It is shown in the on the left with the work platform in place. The launcher was located on a special concrete slab in Launching Area 1. The capsule was lowered onto the booster by crane.... After the assembly was completed, the scaffolding was disassembled and the launcher pitched over to its normal launch angle of 80 degrees.... Little Joe had a diameter of 80 inches and an overall length, including the capsule and escape tower of 48 feet. The total weight at launch was about 43,000 pounds. The overall span of the stabilizing fins was 21.3 feet. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition.
Assembling the Little Joe capsules. The capsules were manufactured in-house by Langley technicians. Three capsules are shown here in various stages of assembly. The escape tower and rocket motors shown on the completed capsule would be removed before shipping and finally assembly for launching at Wallops Island. Joseph Shortal wrote (vol. 3, p. 32): Design of the Little Joe capsules began at Langley before McDonnell started on the design of the Mercury capsule and was, therefore, a separate design. Although it was not designed to carry a man, it did have to carry a monkey. It had to meet the weight and center of gravity requirements of Mercury and withstand the same aerodynamic loads during the exit trajectory. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. Project Mercury: Little Joe: Boilerplate Mercury spacecraft undergo fabrication at the shops of the Langley Research Center. They will launched atop Little Joe rockets to test the spacecraft recovery systems. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition. L59-4947 Technicians prepare a Little Joe launch vehicle prototype for the Mercury space program, 1959. Photograph published in Winds of Change, 75th Anniversary NASA publication, page 76, by James Schultz
Assembling the Little Joe capsules. The capsules were manufactured in-house by Langley technicians. Three capsules are shown here in various stages of assembly. The escape tower and rocket motors shown on the completed capsule would be removed before shipping and finally assembly for launching at Wallops Island. Joseph Shortal wrote (vol. 3, p. 32): Design of the Little Joe capsules began at Langley before McDonnell started on the design of the Mercury capsule and was, therefore, a separate design. Although it was not designed to carry a man, it did have to carry a monkey. It had to meet the weight and center of gravity requirements of Mercury and withstand the same aerodynamic loads during the exit trajectory. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. Project Mercury: Little Joe: Boilerplate Mercury spacecraft undergo fabrication at the shops of the Langley Research Center. They will launched atop Little Joe rockets to test the spacecraft recovery systems. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition. L59-4947 Technicians prepare a Little Joe launch vehicle prototype for the Mercury space program, 1959. Photograph published in Winds of Change, 75th Anniversary NASA publication, page 76, by James Schultz
Technicians attach the escape tower to the Mercury capsule prior to assembly with Little Joe launcher, August 20, 1959. Joseph Shortal describe this as follows (vol. 3., p. 33): The escape tower and rocket motors were taken from the Mercury capsule production. The tower is shown being attached to the capsule.... The escape rocket was a Grand Central 1-KS-52000 motor with three canted nozzles. The tower-jettison motor was an Atlantic Research Corp. 1.4-KS-785 motor. This was the same design tested in a beach abort test...and had the offset thrust line as used in the beach abort test to insure that the capsule would get away from the booster in an emergency. The escape system weighed 1,015 pounds, including 236 pounds of ballast for stability. The Little Joe booster was assembled at Wallops on its special launcher in a vertical attitude. It is shown in the on the left with the work platform in place. The launcher was located on a special concrete slab in Launching Area 1. The capsule was lowered onto the booster by crane.... After the assembly was completed, the scaffolding was disassembled and the launcher pitched over to its normal launch angle of 80 degrees.... Little Joe had a diameter of 80 inches and an overall length, including the capsule and escape tower of 48 feet. The total weight at launch was about 43,000 pounds. The overall span of the stabilizing fins was 21.3 feet. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition.
Assembling the Little Joe capsules. The capsules were manufactured in-house by Langley technicians. Three capsules are shown here in various stages of assembly. The escape tower and rocket motors shown on the completed capsule would be removed before shipping and finally assembly for launching at Wallops Island. Joseph Shortal wrote (vol. 3, p. 32): Design of the Little Joe capsules began at Langley before McDonnell started on the design of the Mercury capsule and was, therefore, a separate design. Although it was not designed to carry a man, it did have to carry a monkey. It had to meet the weight and center of gravity requirements of Mercury and withstand the same aerodynamic loads during the exit trajectory. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. Project Mercury: Little Joe: Boilerplate Mercury spacecraft undergo fabrication at the shops of the Langley Research Center. They will launched atop Little Joe rockets to test the spacecraft recovery systems. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition. L59-4947 Technicians prepare a Little Joe launch vehicle prototype for the Mercury space program, 1959. Photograph published in Winds of Change, 75th Anniversary NASA publication, page 76, by James Schultz
Technicians attach the escape tower to the Mercury capsule prior to assembly with Little Joe launcher, August 20, 1959. Joseph Shortal describe this as follows (vol. 3., p. 33): The escape tower and rocket motors were taken from the Mercury capsule production. The tower is shown being attached to the capsule.... The escape rocket was a Grand Central 1-KS-52000 motor with three canted nozzles. The tower-jettison motor was an Atlantic Research Corp. 1.4-KS-785 motor. This was the same design tested in a beach abort test...and had the offset thrust line as used in the beach abort test to insure that the capsule would get away from the booster in an emergency. The escape system weighed 1,015 pounds, including 236 pounds of ballast for stability. The Little Joe booster was assembled at Wallops on its special launcher in a vertical attitude. It is shown in the on the left with the work platform in place. The launcher was located on a special concrete slab in Launching Area 1. The capsule was lowered onto the booster by crane.... After the assembly was completed, the scaffolding was disassembled and the launcher pitched over to its normal launch angle of 80 degrees.... Little Joe had a diameter of 80 inches and an overall length, including the capsule and escape tower of 48 feet. The total weight at launch was about 43,000 pounds. The overall span of the stabilizing fins was 21.3 feet. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition.
Assembling the Little Joe capsules. The capsules were manufactured in-house by Langley technicians. Three capsules are shown here in various stages of assembly. The escape tower and rocket motors shown on the completed capsule would be removed before shipping and finally assembly for launching at Wallops Island. Joseph Shortal wrote (vol. 3, p. 32): Design of the Little Joe capsules began at Langley before McDonnell started on the design of the Mercury capsule and was, therefore, a separate design. Although it was not designed to carry a man, it did have to carry a monkey. It had to meet the weight and center of gravity requirements of Mercury and withstand the same aerodynamic loads during the exit trajectory. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. Project Mercury: Little Joe: Boilerplate Mercury spacecraft undergo fabrication at the shops of the Langley Research Center. They will launched atop Little Joe rockets to test the spacecraft recovery systems. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition. L59-4947 Technicians prepare a Little Joe launch vehicle prototype for the Mercury space program, 1959. Photograph published in Winds of Change, 75th Anniversary NASA publication, page 76, by James Schultz
Assembling the Little Joe capsules. The capsules were manufactured in-house by Langley technicians. Three capsules are shown here in various stages of assembly. The escape tower and rocket motors shown on the completed capsule would be removed before shipping and finally assembly for launching at Wallops Island. Joseph Shortal wrote (vol. 3, p. 32): Design of the Little Joe capsules began at Langley before McDonnell started on the design of the Mercury capsule and was, therefore, a separate design. Although it was not designed to carry a man, it did have to carry a monkey. It had to meet the weight and center of gravity requirements of Mercury and withstand the same aerodynamic loads during the exit trajectory. Although in comparison with the overall Mercury Project, Little Joe was a simple undertaking, the fact that an attempt was made to condense a normal two-year project into a 6-month one with in house labor turned it into a major undertaking for Langley. Project Mercury: Little Joe: Boilerplate Mercury spacecraft undergo fabrication at the shops of the Langley Research Center. They will launched atop Little Joe rockets to test the spacecraft recovery systems. -- Published in Joseph A. Shortal, History of Wallops Station: Origins and Activities Through 1949, (Wallops Island, VA: National Aeronautics and Space Administration, Wallops Station, nd), Comment Edition. L59-4947 Technicians prepare a Little Joe launch vehicle prototype for the Mercury space program, 1959. Photograph published in Winds of Change, 75th Anniversary NASA publication, page 76, by James Schultz
The Soil Moisture Active Passive (SMAP) mission, scheduled for launch on Jan. 29, will measure the moisture in Earth's soil with greater accuracy and higher resolution than any preceding mission, producing a global map of soil moisture every three days. Here are five quick facts about the spacecraft and what it studies. 1. Soil moisture is a tiny fraction of water with a big punch. Only 0.001 percent of Earth's total water is lodged in the top few feet of soil. That tiny percentage, however, affects all living things on land and plays an important role in moving water, carbon and heat between land and atmosphere. 2. Soil moisture can compound water risks. A flood follows a heavy rainfall -- but only if the ground cannot soak up the rain. Waterlogged soil makes a region more flood-prone. Going to the opposite extreme, a drought can parch soil to such an extent that plants are unable to grow even after a few rains have fallen. Knowing soil moisture allows hydrologists to make better decisions related to the risk of flooding and drought, such as how much water to retain in reservoirs. 3. Soil moisture controls the on-off switch for carbon dioxide cleanup. The world's vast northern forests remove carbon dioxide from the air as they grow, helping to clean up our emissions from burning fossil fuels. But when the ground freezes, that process switches off. Carbon dioxide builds up in the atmosphere until the ground thaws in the spring and plants begin growing again. Knowing where and for how long the ground is frozen or thawed is an important part of understanding the role of the northern forests in reducing greenhouse warming. SMAP will map frozen and thawed soils north of 45 degrees north latitude (about the latitude of Minneapolis), around the globe. 4. SMAP is a twofer. The spacecraft's radiometer produces an accurate reading of how much moisture is in the top two inches (five centimeters) of soil, but it has low spatial resolution, that is, one measurement covers a large area. A radar instrument produces an image with higher spatial resolution, but it can't measure soil moisture as accurately as a radiometer. Through sophisticated data processing, SMAP combines observations from the two instruments into a very accurate measurement with high spatial resolution. 5. SMAP has a huge, folding, spinning antenna. At 19 feet 8 inches (6 meters) in diameter, SMAP's rotating mesh antenna dwarfs the size of the instruments and spacecraft and is the largest rotating antenna of its kind that NASA has yet deployed. But the entire dish furls into a cylinder one foot (diameter) by four feet (30 by 120 centimeters) to fit inside the rocket’s fairing for launch, and it weighs only 128 pounds (about 58 kilograms). For more information about SMAP, see: <a href="http://smap.jpl.nasa.gov/" rel="nofollow">smap.jpl.nasa.gov/</a> <a href="http://www.nasa.gov/smap/" rel="nofollow">www.nasa.gov/smap/</a> <b><a href="http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html" rel="nofollow">NASA image use policy.</a></b> <b><a href="http://www.nasa.gov/centers/goddard/home/index.html" rel="nofollow">NASA Goddard Space Flight Center</a></b> enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. <b>Follow us on <a href="http://twitter.com/NASAGoddardPix" rel="nofollow">Twitter</a></b> <b>Like us on <a href="http://www.facebook.com/pages/Greenbelt-MD/NASA-Goddard/395013845897?ref=tsd" rel="nofollow">Facebook</a></b> <b>Find us on <a href="http://instagram.com/nasagoddard?vm=grid" rel="nofollow">Instagram</a></b>