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        {
            "id": 14680,
            "url": "https://svs.gsfc.nasa.gov/14680/",
            "result_type": "Produced Video",
            "release_date": "2025-01-09T00:00:00-05:00",
            "title": "Astronauts Prepare for NICER Repair Training",
            "description": "On May 16, 2024, astronauts Don Pettit and Nick Hague participated in a training exercise at the NBL (Neutral Buoyancy Laboratory) at NASA’s Johnson Space Center in Houston. They were rehearsing activities related to repairing NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station.Before any spacewalk, astronauts practice and refine procedures in the NBL to simulate — as closely as possible on Earth — the conditions under which they’ll complete the task in space.In May 2023, damage to thin thermal shields protecting NICER allowed sunlight to reach its sensitive X-ray detectors. This saturated sensors and interfered with NICER’s X-ray measurements during orbital daytime.The NICER team developed five wedge-shaped patches to cover the largest areas of damage. The plan calls for astronauts to insert these patches into the instrument’s sunshades and lock them in place. || ",
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            "id": 14678,
            "url": "https://svs.gsfc.nasa.gov/14678/",
            "result_type": "Produced Video",
            "release_date": "2025-01-07T00:00:00-05:00",
            "title": "Astronauts Practice NICER Repair",
            "description": "On May 16, 2024, astronauts Don Pettit and Nick Hague practiced a repair for NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station. The training exercise took place in the (NBL) Neutral Buoyancy Laboratory at NASA’s Johnson Space Center in Houston.Before any spacewalk, astronauts rehearse activities in the NBL to simulate — as much as possible — the conditions under which they’ll complete the task in space.In May 2023, NICER developed a “light leak,” where unwanted sunlight began entering the instrument. The damage allows sunlight to reach the detectors during the station’s daytime, saturating sensors and interfering with NICER’s X-ray measurements. The damage does not impact nighttime observations.The NICER team developed a plan to cover the largest areas of damage using five patches, each shaped like a piece of pie, to be inserted into the instrument’s sunshades and locked in place. || ",
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        {
            "id": 14679,
            "url": "https://svs.gsfc.nasa.gov/14679/",
            "result_type": "Produced Video",
            "release_date": "2024-12-13T00:00:00-05:00",
            "title": "NICER Caddy Preparation",
            "description": "In Spring 2024, scientists and engineers at NASA prepared and packed a patch kit for NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station.In May 2023, damage to thin thermal shields protecting NICER allowed sunlight to reach its sensitive X-ray detectors. This saturated sensors and interfered with NICER’s measurements during orbital daytime.The NICER team designed five wedge-shaped patches to cover the largest areas of damage. The plan calls for astronauts to insert these patches into the instrument’s sunshades and lock them in place. || ",
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        {
            "id": 13214,
            "url": "https://svs.gsfc.nasa.gov/13214/",
            "result_type": "Produced Video",
            "release_date": "2019-05-30T10:45:00-04:00",
            "title": "NICER's Night Moves",
            "description": "This image of the whole sky shows 22 months of X-ray data recorded by NASA's Neutron star Interior Composition Explorer (NICER) payload aboard the International Space Station during its nighttime slews between targets. NICER frequently observes targets best suited to its core mission (“mass-radius” pulsars) and those whose regular pulses are ideal for the Station Explorer for X-ray Timing and Navigation Technology (SEXTANT) experiment. One day they could form the basis of a GPS-like system for navigating the solar system.Credits: NASA/NICER || NICERNightMoveslabels.jpg (3299x1650) [13.7 MB] || ",
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        {
            "id": 10857,
            "url": "https://svs.gsfc.nasa.gov/10857/",
            "result_type": "Produced Video",
            "release_date": "2013-04-05T16:00:00-04:00",
            "title": "SEXTANT: Navigating by Cosmic Beacon",
            "description": "Imagine a technology that would allow space travelers to transmit gigabytes of data per second over interplanetary distances or to navigate to Mars and beyond using powerful beams of light emanating from rotating neutron stars. The concept isn't farfetched.In fact, Goddard astrophysicists Keith Gendreau and Zaven Arzoumanian plan to fly a multi-purpose instrument on the International Space Station to demonstrate the viability of two groundbreaking navigation and communication technologies and, from the same platform, gather scientific data revealing the physics of dense matter in neutron stars. || ",
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}