In this illustration showing NEO Surveyor, NASA's next-generation near-Earth object hunter, the spacecraft floats in an infrared starfield containing stars, star clusters, gas, and dust. More than 100 asteroids can be seen as red dots, with some of them visible in a track that shows how they were captured at different times as they marched across the sky. This starfield was observed by NASA's Wide-field Infrared Survey Explorer, or WISE, during its primary all-sky survey in March 2010 before it was put into hibernation a year later. In December 2013, the space telescope was reactivated to search for more asteroids as the NEOWISE mission. NASA's NEO Surveyor will build upon the successes of NEOWISE as the first space mission built specifically to find large numbers of hazardous asteroids and comets. The space telescope will launch to a region of gravitational stability between the Earth and the Sun called the L1 Lagrange point, where the spacecraft will orbit during its five-year primary mission. From this location, the space telescope will view the solar system in infrared wavelengths &ndash light that is invisible to the human eye. Because those wavelengths are mostly blocked by Earth's atmosphere, larger ground-based observatories may miss near-Earth objects that NEO Surveyor will be able to spot from space by using its modest light-collecting aperture of nearly 20 inches (50 centimeters). NEO Surveyor's cutting-edge detectors are designed to observe two heat-sensitive infrared bands that were chosen specifically so the spacecraft can track the most challenging-to-find near-Earth objects, such as dark asteroids and comets that don't reflect much visible light. In the infrared wavelengths to which NEO Surveyor is sensitive, these objects glow as they are heated by sunlight. In addition, NEO Surveyor will be able to find asteroids that approach Earth from the direction of the Sun, as well as those that lead and trail our planet's orbit, where they are typically obscured by the glare of sunlight – objects known as Earth Trojans. The mission is tasked by NASA's Planetary Science Division within the Science Mission Directorate; program oversight is provided by the PDCO, which was established in 2016 to manage the agency's ongoing efforts in planetary defense. NASA's Planetary Missions Program Office at Marshall Space Flight Center provides program management for NEO Surveyor. The project is being developed by JPL and is led by survey director Amy Mainzer at the University of Arizona. Established aerospace and engineering companies have been contracted to build the spacecraft and its instrumentation, including Ball Aerospace , Space Dynamics Laboratory, and Teledyne. The Laboratory for Atmospheric and Space Physics at the University of Colorado, Boulder will support operations, and IPAC-Caltech in Pasadena, California, is responsible for processing survey data and producing the mission's data products. Caltech manages JPL for NASA. https://photojournal.jpl.nasa.gov/catalog/PIA25253

The sunshade for NASA’s Near-Earth Object (NEO) Surveyor mission towers above a fixture at supplier Applied Aerospace in Stockton, California, in September 2025. Standing at over 20 feet (6 meters) high, the sunshade is the largest component of spacecraft. The structure was next shipped to BAE Systems in Boulder, Colorado, for a “fit check” with the spacecraft bus. For scale, technicians and engineers from the project in front of the sunshade. The sunshade’s Sun-facing surface (visible here) will next be fitted with solar panels that will generate power for the spacecraft after launch. The spacecraft’s instrument enclosure, which houses the telescope and sensitive infrared cameras, will be located behind the sunshade, allowing the spacecraft to detect and track near-Earth objects that would otherwise be hidden by the Sun’s glare. Targeting launch in late 2027, the NEO Surveyor mission is led by Professor Amy Mainzer at the University of California, Los Angeles for NASA’s Planetary Defense Coordination Office and is being managed by the agency’s Jet Propulsion Laboratory in Southern California for the Planetary Missions Program Office at NASA’s Marshall Space Flight Center in Huntsville, Alabama. BAE Systems and the Space Dynamics Laboratory in Logan, Utah, and Teledyne are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for producing some of the mission’s data products. Caltech manages JPL for NASA. More information about NEO Surveyor is available at: https://science.nasa.gov/mission/neo-surveyor/

An engineer inspects the surface of four mid-wavelength infrared science detectors for NASA’s Near-Earth Object (NEO) Surveyor mission atop a clean room bench at the Space Dynamics Laboratory (SDL) in Logan, Utah. Mounted to a sensor chip assembly, the four blue-green-colored detectors are made with mercury cadmium telluride (HgCdTe), a versatile semiconducting alloy that is sensitive to infrared wavelengths. There are two such assemblies that form the heart of NEO Surveyor’s two science cameras. These state-of-the-art cameras sense solar heat re-radiated by near-Earth objects. The mission’s cameras and telescope, which has an aperture of nearly 20 inches (50 centimeters), will be housed inside the spacecraft’s instrument enclosure, a structure that is designed to ensure heat produced by the spacecraft and instrument during operations doesn’t interfere with its infrared observations. Targeting launch in late 2027, the NEO Surveyor mission is led by Professor Amy Mainzer at the University of California, Los Angeles for NASA’s Planetary Defense Coordination Office and is being managed by the agency’s Jet Propulsion Laboratory in Southern California for the Planetary Missions Program Office at NASA’s Marshall Space Flight Center in Huntsville, Alabama. BAE Systems and the Space Dynamics Laboratory in Logan, Utah, and Teledyne are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for producing some of the mission’s data products. Caltech manages JPL for NASA. More information about NEO Surveyor is available at: https://science.nasa.gov/mission/neo-surveyor/

Four mid-wavelength infrared science detectors for NASA’s Near-Earth Object (NEO) Surveyor mission are shown here on a clean room bench at the Space Dynamics Laboratory (SDL) in Logan, Utah. Mounted to a sensor chip assembly, the four blue-green-colored detectors are made with mercury cadmium telluride (HgCdTe), a versatile semiconducting alloy that is sensitive to infrared wavelengths. There are two such assemblies that form the heart of NEO Surveyor’s two science cameras. These state-of-the-art cameras sense solar heat re-radiated by near-Earth objects. The mission’s cameras and telescope, which has an aperture of nearly 20 inches (50 centimeters), will be housed inside the spacecraft’s instrument enclosure, a structure that is designed to ensure heat produced by the spacecraft and instrument during operations doesn’t interfere with its infrared observations. Targeting launch in late 2027, the NEO Surveyor mission is led by Professor Amy Mainzer at the University of California, Los Angeles for NASA’s Planetary Defense Coordination Office and is being managed by the agency’s Jet Propulsion Laboratory in Southern California for the Planetary Missions Program Office at NASA’s Marshall Space Flight Center in Huntsville, Alabama. BAE Systems and the Space Dynamics Laboratory in Logan, Utah, and Teledyne are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for producing some of the mission’s data products. Caltech manages JPL for NASA. More information about NEO Surveyor is available at: https://science.nasa.gov/mission/neo-surveyor/

The sunshade for NASA’s Near-Earth Object (NEO) Surveyor mission towers above a fixture at supplier Applied Aerospace in Stockton, California, in September 2025. Standing at over 20 feet (6 meters) high, the sunshade is the largest component of spacecraft. The structure was next shipped to BAE Systems in Boulder, Colorado, for a “fit check” with the spacecraft bus. The sunshade’s Sun-facing surface (visible here) will next be fitted with solar panels that will generate power for the spacecraft after launch. The spacecraft’s instrument enclosure, which houses the telescope and sensitive infrared cameras, will be located behind the sunshade, allowing the spacecraft to detect and track near-Earth objects that would otherwise be hidden by the Sun’s glare. Targeting launch in late 2027, the NEO Surveyor mission is led by Professor Amy Mainzer at the University of California, Los Angeles for NASA’s Planetary Defense Coordination Office and is being managed by the agency’s Jet Propulsion Laboratory in Southern California for the Planetary Missions Program Office at NASA’s Marshall Space Flight Center in Huntsville, Alabama. BAE Systems and the Space Dynamics Laboratory in Logan, Utah, and Teledyne are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for producing some of the mission’s data products. Caltech manages JPL for NASA. More information about NEO Surveyor is available at: https://science.nasa.gov/mission/neo-surveyor/

A technician operates articulating equipment to rotate the Near-Earth Object Surveyor (NEO Surveyor) mission's aluminum optical bench – part of the spacecraft's telescope – in a clean room at NASA's Jet Propulsion Laboratory in Southern California on July 17, 2024. NEO Surveyor's sole instrument is a "three-mirror anastigmat telescope," which will rely on a set of curved mirrors to focus light onto its infrared detectors in such a way that minimizes optical aberrations. When complete, the telescope will be housed inside an instrument enclosure – being built in a different JPL clean room – that is fabricated from dark composite material that allows heat to escape, helping to keep the telescope cool and prevent its own heat from obscuring observations. https://photojournal.jpl.nasa.gov/catalog/PIA26387

This artist's concept depicts NASA's Near-Earth Object Surveyor (NEO Surveyor) in deep space. After launch, the spacecraft will travel a million miles to a region of gravitational stability – called the L1 Lagrange point – between Earth and the Sun. From there, its large sunshade will block the glare and heat of sunlight, allowing the mission to discover and track near-Earth objects as they approach Earth from the direction of the Sun, which is difficult for other observatories to do. The black-paneled angular structure in the belly of the spacecraft is the instrument enclosure that is being built at NASA's Jet Propulsion Laboratory in Southern California. The spacecraft's only instrument, its infrared telescope, will be installed inside the enclosure. Fabricated from dark composite material that allows heat to escape, the enclosure will help keep the telescope cool and prevent its own heat from obscuring observations. https://photojournal.jpl.nasa.gov/catalog/PIA26388

The instrument enclosure for NASA's Near-Earth Object (NEO) Surveyor on May 22, 2025, is seen in a clean room at the Space Dynamics Laboratory (SDL) in Logan, Utah, shortly after arriving from the agency's Jet Propulsion Laboratory in Southern California, where it was assembled. The instrument enclosure is attached to an articulating assembly dolly and wrapped in silver-colored material (composed of a metalized polyester film and a low charging polyethylene laminate) to protect the flight hardware from static electricity and dust particles during transport. The instrument enclosure will house the observatory's scientific instrument, which includes a three-reflection aluminum telescope, state-of-the-art infrared detectors, and an innovative passive cooling system to keep the instrument at cryogenic temperatures. The telescope, which has an aperture of nearly 20 inches (50 centimeters), features detectors sensitive to two infrared wavelengths in which near-Earth objects re-radiate solar heat. The instrument enclosure is designed to ensure heat produced by the spacecraft and instrument during operations doesn't interfere with its infrared observations. As NASA's first space-based detection mission specifically designed for planetary defense, NEO Surveyor will seek out, measure, and characterize the hardest-to-find asteroids and comets that might pose a hazard to Earth. While many near-Earth objects don't reflect much visible light, they glow brightly in infrared light due to heating by the Sun. Targeting launch in late 2027, the NEO Surveyor mission is led by Professor Amy Mainzer at UCLA for NASA's Planetary Defense Coordination Office and is being managed by JPL for the Planetary Missions Program Office at NASA's Marshall Space Flight Center in Huntsville, Alabama. BAE Systems, SDL, and are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for producing some of the mission's data products. Caltech manages JPL for NASA. https://photojournal.jpl.nasa.gov/catalog/PIA26589

Technicians and engineers inspect NASA's Near-Earth Object (NEO) Surveyor's instrument enclosure at the Space Dynamics Laboratory (SDL) in Logan, Utah, after it arrived from the agency's Jet Propulsion Laboratory in Southern California in May 2025. The instrument enclosure will house the spacecraft's telescope, which is fitted with state-of-the-art detectors and a novel cryogenic system to keep the instrument cool. The telescope, which has an aperture of nearly 20 inches (50 centimeters), features detectors sensitive to two infrared wavelengths in which near-Earth objects re-radiate solar heat. The instrument enclosure is designed to ensure heat produced by the telescope during operations doesn't interfere with its observations. As NASA's first space-based detection mission specifically designed for planetary defense, NEO Surveyor will seek out, measure, and characterize the hardest-to-find asteroids and comets that might pose a hazard to Earth. While many near-Earth objects don't reflect much visible light, they glow brightly in infrared light due to heating by the Sun. Targeting launch in late 2027, the NEO Surveyor mission is led by Professor Amy Mainzer at UCLA for NASA's Planetary Defense Coordination Office and is being managed by JPL for the Planetary Missions Program Office at NASA's Marshall Space Flight Center in Huntsville, Alabama. BAE Systems, SDL, and are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for producing some of the mission's data products. Caltech manages JPL for NASA. https://photojournal.jpl.nasa.gov/catalog/PIA26590

After arriving at the Space Dynamics Laboratory (SDL) in Logan, Utah, from NASA's Jet Propulsion Laboratory in Southern California in May 2025, the instrument enclosure for the agency's Near-Earth Object (NEO) Surveyor mission was inspected prior to thermal vacuum testing. Shown here, the enclosure stands vertically atop an articulating assembly dolly. The shiny and black surfaces of the enclosure optimize the reflection and radiation properties of the structure. The telescope, which has an aperture of nearly 20 inches (50 centimeters), features detectors sensitive to two infrared wavelengths in which near-Earth objects re-radiate solar heat. The instrument enclosure is designed to ensure heat produced by the telescope during operations doesn't interfere with its observations. As NASA's first space-based detection mission specifically designed for planetary defense, NEO Surveyor will seek out, measure, and characterize the hardest-to-find asteroids and comets that might pose a hazard to Earth. While many near-Earth objects don't reflect much visible light, they glow brightly in infrared light due to heating by the Sun. Targeting launch in late 2027, the NEO Surveyor mission is led by Professor Amy Mainzer at UCLA for NASA's Planetary Defense Coordination Office and is being managed by JPL for the Planetary Missions Program Office at NASA's Marshall Space Flight Center in Huntsville, Alabama. BAE Systems, SDL, and are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for producing some of the mission's data products. Caltech manages JPL for NASA. https://photojournal.jpl.nasa.gov/catalog/PIA26597

The aluminum telescope of NASA’s Near-Earth Object (NEO) Surveyor mission is shown here attached its flight base frame at a Space Dynamics Laboratory (SDL) clean room in Logan, Utah, in early September 2025. The telescope is connected via a system of struts that prevent heat from passing from the spacecraft to the instrument, keeping it secure, isolated, and cool. The spacecraft’s instrument enclosure will later be fitted over the instrumentation and then the pair will be attached to the spacecraft bus and sunshade. With an aperture of nearly 20 inches (50 centimeters), the telescope features detectors sensitive to two infrared wavelengths in which near-Earth objects re-radiate solar heat. The instrument enclosure is designed to ensure heat produced by the spacecraft and instrument during operations doesn’t interfere with its infrared observations. Targeting launch in late 2027, the NEO Surveyor mission is led by Professor Amy Mainzer at the University of California, Los Angeles for NASA’s Planetary Defense Coordination Office and is being managed by the agency’s Jet Propulsion Laboratory in Southern California for the Planetary Missions Program Office at NASA’s Marshall Space Flight Center in Huntsville, Alabama. BAE Systems and the Space Dynamics Laboratory in Logan, Utah, and Teledyne are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for producing some of the mission’s data products. Caltech manages JPL for NASA. More information about NEO Surveyor is available at: https://science.nasa.gov/mission/neo-surveyor/

Engineers with NASA’s Near-Earth Object (NEO) Surveyor mission work in a Space Dynamics Laboratory (SDL) clean room in Logan, Utah, to attach the spacecraft’s aluminum telescope to the flight base frame in early September 2025. The telescope is connected via a system of struts that prevent heat from passing from the spacecraft to the instrument, keeping it secure, isolated, and cool. With an aperture of nearly 20 inches (50 centimeters), the telescope features detectors sensitive to two infrared wavelengths in which near-Earth objects re-radiate solar heat. The instrument enclosure is designed to ensure heat produced by the spacecraft and instrument during operations doesn’t interfere with its infrared observations. Targeting launch in late 2027, the NEO Surveyor mission is led by Professor Amy Mainzer at the University of California, Los Angeles for NASA’s Planetary Defense Coordination Office and is being managed by the agency’s Jet Propulsion Laboratory in Southern California for the Planetary Missions Program Office at NASA’s Marshall Space Flight Center in Huntsville, Alabama. BAE Systems and the Space Dynamics Laboratory in Logan, Utah, and Teledyne are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for producing some of the mission’s data products. Caltech manages JPL for NASA. More information about NEO Surveyor is available at: https://science.nasa.gov/mission/neo-surveyor/

The instrument enclosure for NASA's Near-Earth Object Surveyor is prepared for environmental testing inside the historic Chamber A in the Space Environment Simulation Laboratory at the agency's Johnson Space Center in Houston in December 2024. Mounted to its articulating platform, on which it was securely positioned during assembly, the 12-foot-long (3.7-meter-long) angular structure was inspected by technicians before being placed inside the testing chamber. Figure A shows the reflective side of the instrument enclosure as it was rotated on the assembly dolly before being transferred to a testing platform. The cavernous opening to Chamber A is in the background. The instrument enclosure is designed to protect the spacecraft's infrared telescope while also removing heat from it during operations. After environmental testing was completed, the enclosure returned to NASA's Jet Propulsion Laboratory in Southern California for further work, after which it will ship to the Space Dynamics Laboratory (SDL) in Logan, Utah, and be joined to the telescope. Both the instrument enclosure and telescope were assembled at JPL. As NASA's first space-based detection mission specifically designed for planetary defense, NEO Surveyor will seek out, measure, and characterize the hardest-to-find asteroids and comets that might pose a hazard to Earth. While many near-Earth objects don't reflect much visible light, they glow brightly in infrared light due to heating by the Sun. The spacecraft's telescope, which has an aperture of nearly 20 inches (50 centimeters), features detectors sensitive to two infrared wavelengths in which near-Earth objects re-radiate solar heat. Targeting launch in late 2027, the NEO Surveyor mission is led by Prof. Amy Mainzer at UCLA for NASA's Planetary Defense Coordination Office and is being managed by JPL for the Planetary Missions Program Office at NASA's Marshall Space Flight Center in Huntsville, Alabama. BAE Systems, SDL, and Teledyne are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and Caltech/IPAC in Pasadena, California, is responsible for producing some of the mission's data products. Caltech manages JPL for NASA. https://photojournal.jpl.nasa.gov/catalog/PIA26582

The instrument enclosure of NASA's Near-Earth Object Surveyor is prepared for critical environmental tests inside the historic Chamber A at the Space Environment Simulation Laboratory at the agency's Johnson Space Center in Houston in December 2024. Wrapped in silver thermal blanketing, the 12-foot-long (3.7-meter-long) angular structure was subjected to the frigid, airless conditions that the spacecraft will experience when in deep space. The cavernous thermal-vacuum test facility is famous for testing the Apollo spacecraft that traveled to the Moon in the 1960s and '70s. The instrument enclosure is designed to protect the spacecraft's infrared telescope while also removing heat from it during operations. After environmental testing was completed, the enclosure returned to NASA's Jet Propulsion Laboratory in Southern California for further work, after which it will ship to the Space Dynamics Laboratory (SDL) in Logan, Utah, and be joined to the telescope. Both the instrument enclosure and telescope were assembled at JPL. As NASA's first space-based detection mission specifically designed for planetary defense, NEO Surveyor will seek out, measure, and characterize the hardest-to-find asteroids and comets that might pose a hazard to Earth. While many near-Earth objects don't reflect much visible light, they glow brightly in infrared light due to heating by the Sun. The spacecraft's telescope, which has an aperture of nearly 20 inches (50 centimeters), features detectors sensitive to two infrared wavelengths in which near-Earth objects re-radiate solar heat. Targeting launch in late 2027, the NEO Surveyor mission is led by Prof. Amy Mainzer at UCLA for NASA's Planetary Defense Coordination Office and is being managed by JPL for the Planetary Missions Program Office at NASA's Marshall Space Flight Center in Huntsville, Alabama. BAE Systems, SDL, and Teledyne are among the companies that were contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder will support operations, and Caltech/IPAC in Pasadena, California, is responsible for producing some of the mission's data products. Caltech manages JPL for NASA. https://photojournal.jpl.nasa.gov/catalog/PIA26583

The dark, bulky instrument enclosure for NASA's NEO Surveyor is seen here (left) in the High Bay 1 clean room of the Spacecraft Assembly Facility at NASA's Jet Propulsion Laboratory in Southern California in March 2025. A major component of the mission, the instrument enclosure journeyed back to JPL in early March after completing environmental testing at NASA's Johnson Space Center in Houston. The gold-coated, circular antenna at right is part of the telescope for NASA's ASTHROS (Astrophysics Stratospheric Telescope for High Spectral Resolution Observations at Submillimeter-wavelengths), an atmospheric balloon mission; it has been in the clean room since December 2024. https://photojournal.jpl.nasa.gov/catalog/PIA26584

A truck arrives at NASA's Jet Propulsion Laboratory in Southern California on June 3, 2024, to deliver the Medium Articulating Transportation System (MATS), which will be used during the construction and transportation of components for NASA's Near-Earth Object Surveyor mission. Originating at the aerospace company Beyond Gravity in Vienna, Austria, the MATS traveled via ship through the Panama Canal to Port Hueneme, California, before arriving by road at JPL. Construction has begun on NEO Surveyor's instrument enclosure in the High Bay 1 clean room at JPL's Spacecraft Assembly Facility. When the enclosure is complete later this year, it will be moved inside the MATS to NASA's Johnson Space Center in Houston for environmental testing. The MATS is a transportable clean room with its own filtration and climate control systems that keep the spacecraft and components clean, stable, and safe while being moved between facilities. NEO Surveyor's instrument enclosure contains the spacecraft's telescope, mirrors, and infrared sensors that will be used to detect, track, and characterize the most hazardous near-Earth objects. BAE Systems, Space Dynamics Laboratory, and Teledyne are among the aerospace and engineering companies contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado, Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for processing survey data and producing the mission's data products. JPL manages the project; Caltech manages JPL for NASA. Launching no earlier than 2027, NEO Surveyor supports the objectives of NASA's Planetary Defense Coordination Office (PDCO) at NASA Headquarters in Washington. The NASA Authorization Act of 2005 directed NASA to discover and characterize at least 90% of the near-Earth objects more than 140 meters (460 feet) across that come within 30 million miles (48 million kilometers) of our planet's orbit. Objects of this size can cause significant regional damage, or worse, should they impact the Earth. https://photojournal.jpl.nasa.gov/catalog/PIA26381

At NASA's Jet Propulsion Laboratory in Southern California, on June 7, 2024, clean room technicians use a crane to lift the lid of the Medium Articulating Transportation System (MATS) that will be used during the construction and transportation of components for NASA's Near-Earth Object Surveyor mission. Inside the MATS is the Medium Articulating Assembly Dolly (MAAD), a platform that will support the spacecraft's instrument enclosure, which is being constructed inside the High Bay 1 clean room at JPL's Spacecraft Assembly Facility. The MAAD is an articulating platform on which a spacecraft (or spacecraft components) can be mounted securely and positioned as required during assembly. It can tilt a spacecraft vertically and horizontally, rotating it 360 degrees. JPL plans to use the MAAD for future missions to reduce the number of crane lifts during assembly, test, and launch operations, known as ATLO. NEO Surveyor is the first mission to use the platform. NEO Surveyor's instrument enclosure contains the spacecraft's telescope, mirrors, and infrared sensors that will be used to detect, track, and characterize the most hazardous near-Earth objects. BAE Systems, Space Dynamics Laboratory, and Teledyne are among the aerospace and engineering companies contracted to build the spacecraft and its instrumentation. The Laboratory for Atmospheric and Space Physics at the University of Colorado, Boulder will support operations, and IPAC at Caltech in Pasadena, California, is responsible for processing survey data and producing the mission's data products. JPL manages the project; Caltech manages JPL for NASA. Launching no earlier than 2027, NEO Surveyor supports the objectives of NASA's Planetary Defense Coordination Office (PDCO) at NASA Headquarters in Washington. The NASA Authorization Act of 2005 directed NASA to discover and characterize at least 90% of the near-Earth objects more than 140 meters (460 feet) across that come within 30 million miles (48 million kilometers) of our planet's orbit. Objects of this size can cause significant regional damage, or worse, should they impact the Earth. https://photojournal.jpl.nasa.gov/catalog/PIA26382

A mirror set to be installed inside the telescope for NASA's Near-Earth Object Surveyor (NEO Surveyor) is seen during an inspection of the mirror's surface at NASA's Jet Propulsion Laboratory in Southern California on July 17, 2024. Being built in a JPL clean room, the infrared telescope is the spacecraft's only instrument and it will be used to seek out some of the hardest-to-find near-Earth objects that may pose a hazard to our planet. The reflection of principal optical engineer Brian Monacelli can be seen in the mirror. Known as a "three-mirror anastigmat telescope," the instrument will rely on a set of curved mirrors to focus light onto its infrared detectors in such a way that minimizes optical aberrations. Before being installed, the mirrors were examined for any debris or damage. Then, JPL's team of optomechanical technicians and engineers attached the mirrors to the telescope's "optical bench" in August. Next, they will measure the telescope's performance and align the telescope's mirrors. When complete, the telescope will be housed inside an instrument enclosure – being built at JPL in a different clean room – that is fabricated from dark composite material that allows heat to escape, helping to keep the telescope cool and prevent its own heat from obscuring observations. https://photojournal.jpl.nasa.gov/catalog/PIA26386

NASA Administrator Bill Nelson points to a model of the Near-Earth Object Surveyor space telescope (NEO Surveyor) as he testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled “Examining NASA’s Budget and Priorities,” Tuesday, May 16, 2023, at the Russell Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)