{ "count": 7, "next": null, "previous": null, "results": [ { "id": 14948, "url": "https://svs.gsfc.nasa.gov/14948/", "result_type": "Produced Video", "release_date": "2026-03-31T09:00:00-04:00", "title": "Integrating The Nancy Grace Roman Space Telescope's Two Halves", "description": "NASA’s Nancy Grace Roman Space Telescope team has successfully integrated the mission’s telescope and two instruments onto the instrument carrier, marking the completion of the Roman payload. Now the team at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, will begin joining the payload to the spacecraft.The telescope and instruments were mounted to Roman’s instrument carrier and precisely aligned in the largest clean room at Goddard, where the observatory is being assembled. Now, the whole assembly is being attached to the Roman spacecraft, which will deliver the observatory to its orbit and enable it to function once there.In the footage below technicians carefully lift the outer portion of the telescope, called the OSD or Outer Barrel, SASS, Deployable Aperature Cover, and place it over the internal half. Long guard rails keep the two halves in perfect position. The solar panels open shortly after the two havles joined, marking a nearly deployed and fully assembled observatory. || ", "hits": 303 }, { "id": 14991, "url": "https://svs.gsfc.nasa.gov/14991/", "result_type": "Produced Video", "release_date": "2026-03-20T12:00:00-04:00", "title": "Argonne Assembles, Tests Early ComPair-2 Hardware", "description": "Tim Cundiff, an engineering specialist at Argonne National Laboratory in Lemont, Illinois, monitors the automated wire bond of a ComPair-2 detector layer in April 2025. Image courtesy of Argonne National LaboratoryAlt text: A man in a lab uses a microscope.Image description: A man in a white clean suit, gloves, safety glasses, and a hairnet sits in front of a piece of machinery in a laboratory and peers into a microscope. Behind him is a long bench covered in scientific equipment and computers. In front of him, inside the machinery, are what look like two black treads that loop in and out of frame. || 34340D_0388_PSE_NASA_Goddard_Gamma-Ray_Tracker_Assembly_Process_WEB_16x9.jpg (2000x1125) [1.1 MB] || 34340D_0388_PSE_NASA_Goddard_Gamma-Ray_Tracker_Assembly_Process_WEB_16x9_searchweb.png (320x180) [124.6 KB] || 34340D_0388_PSE_NASA_Goddard_Gamma-Ray_Tracker_Assembly_Process_WEB_16x9_thm.png (80x40) [27.3 KB] || ", "hits": 90 }, { "id": 14842, "url": "https://svs.gsfc.nasa.gov/14842/", "result_type": "B-Roll", "release_date": "2025-05-19T00:00:00-04:00", "title": "Roman Space Telescope's Outer Shell Passes Thermal Test - Drone Footage", "description": "The outer portion of the Nancy Grace Roman Space Telescope recently passed a major milestone: thermal cycling. Drone footage captures its emergence from the test facility and return to the clean room. The Roman Space Telescope is a NASA observatory designed to perform wide-field imaging and surveys of the near-infrared sky. || ", "hits": 82 }, { "id": 14698, "url": "https://svs.gsfc.nasa.gov/14698/", "result_type": "Produced Video", "release_date": "2024-10-22T11:00:00-04:00", "title": "NASA Reveals LISA Engineering Development Unit Telescope", "description": "NASA has revealed the first look at a full-scale prototype for six telescopes that will enable, in the next decade, the space-based detection of gravitational waves — ripples in space-time caused by merging black holes and other cosmic sources.The LISA (Laser Interferometer Space Antenna) mission is led by ESA (European Space Agency) in partnership with NASA to detect gravitational waves by using lasers to measure precise distances — down to picometers, or trillionths of a meter — between a trio of spacecraft distributed in a vast configuration larger than the Sun. Each side of the triangular array will measure nearly 1.6 million miles, or 2.5 million kilometers.Twin telescopes aboard each spacecraft will both transmit and receive infrared laser beams to track their companions, and NASA is supplying all six of them to the LISA mission. The prototype, called the Engineering Development Unit Telescope, will provide guidance as engineers and scientists work toward building the flight hardware.In May, the prototype, which was manufactured and assembled by L3Harris Technologies in Rochester, New York, arrived at NASA's Goddard Space Flight Center in Greenbelt, Maryland. The primary mirror is coated in gold to better reflect the infrared lasers and to reduce heat loss from a surface exposed to cold space since the telescope will operate best when close to room temperature. The prototype is made entirely from an amber-colored glass-ceramic called Zerodur, manufactured by Schott in Mainz, Germany. The material is widely used for telescope mirrors and other applications requiring high precision because its shape changes very little over a wide range of temperatures. || ", "hits": 99 }, { "id": 14491, "url": "https://svs.gsfc.nasa.gov/14491/", "result_type": "Produced Video", "release_date": "2023-12-26T00:00:00-05:00", "title": "Roman Hardware Highlights", "description": "This video, covering the second half of 2025, opens with a person entering NASA’s Goddard Space Flight Center’s largest clean room, the Spacecraft Systems Development and Integration Facility. The room is a class 10,000 clean room with over one million cubic feet of space.The outside half of Roman, called OSD, contains the solar panels and protective layers. The Deployable Aperture Cover, which protects the mirrors during launch and then unfolds to help shield them from sunlight does a test deployment. During this test, lines connect to it and pull upward to negate Earth’s gravitational forces, which Roman will not experience in space. Then the Solar Array Sun Shield panels deploy. There are four panels that move. They fold against the spacecraft to fit inside the rocket fairing and then deploy in space to make a large flat plane that both collects light to generate electricity and helps keep the rest of Roman cool.In preparation for additional testing, technicians put a clean tent over OSD and transport it out of the clean room. They push it into the acoustic test chamber where a six-foot-tall horn projects up to 150-decibel sound at varying frequencies. The other tests are on two vibration tables that shake Roman along all three axes: up/down, left/right, and forward/backward. Engineers attach hundreds of sensors and run tests of increasing intensity. During and after each test, they carefully study the data to make sure that Roman is behaving as they anticipated.While these tests occur, Roman’s inside half, containing the mirrors, instruments and support equipment, move into Goddard’s largest thermal vacuum chamber, the SES (Space Environment Simulator). This 40-foot-tall chamber can simulate the vacuum of space and the wide temperature range that Roman will experience there: from -310° Fahrenheit (-190° C) to 302° Fahrenheit (150° C). The move to the chamber happens without a clean tent, so the entire path was cleaned, and all the workers dress in full clean-room garb to ensure that no dirt contaminates the sensitive parts of the spacecraft. Once the two layers of doors are sealed, Roman spends 72 days inside running through tests at various temperatures and with equipment turned on to ensure that it works at low temperature in a vacuum. A special array installed above the mirror projects light that engineers use to test the optics and sensors.After leaving the SES chamber and returning to the SSDIF, Roman’s primary and secondary mirrors are carefully cleaned and inspected. It is a balance to get the mirrors as clean as possible while not cleaning too aggressively and damaging the delicate surfaces. The mirrors are cleaned both horizontally with a gentle vacuum cleaner and vertically with brushes. After this cleaning, every inch is visually inspected and photographed to record the exact optical characteristics. This was the last time the primary mirror would be accessible.Finally, in late November, Roman’s two halves are joined together to form the complete observatory. The process takes the better part of a day. Two guide poles are installed on the inside half to help direct OSD down onto it. At various times, the clearances between the two halves are only a few inches. With the observatory complete, it begins preparing for another round of deployments and testing.Music credit: “Our Journey Begins,” Dan Thiessen [BMI], Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || YTframe_Roman_Hardware_Highlights_SummerFall2025_3.jpg (1280x720) [473.7 KB] || Roman_HH_Summer-Fall2025_10mbps.mp4 (1920x1080) [185.0 MB] || Roman_HH_Summer-Fall2025_25mbps.mp4 (1920x1080) [452.7 MB] || Roman_HH_Summer-Fall2025_YT.mp4 (1920x1080) [880.2 MB] || RomanHHLate2025Captions.en_US.srt [588 bytes] || RomanHHLate2025Captions.en_US.vtt [570 bytes] || Roman_HH_Summer-Fall2025_ProRes_1920x1080_2997.mov (1920x1080) [2.5 GB] || ", "hits": 256 }, { "id": 14342, "url": "https://svs.gsfc.nasa.gov/14342/", "result_type": "Produced Video", "release_date": "2023-05-01T12:00:00-04:00", "title": "Roman's Central Cylinder Enters the Cleanroom", "description": "Music Credits: By Design - Ben BeinyMicroworld - Benji Paul Merrison and Will SlaterComplete transcript available.