NASA’s Webb Finds Water, and a New Mystery, in Rare Main Belt …
WEBMay 15, 2023 · Using Webb’s NIRSpec (Near-Infrared Spectrograph) instrument, astronomers have confirmed gas – specifically water vapor – around a comet in the main asteroid belt for the first time, indicating that water ice from the primordial solar system can be preserved in that region.
Hubble Confirms Largest Comet Nucleus Ever Seen - NASA Science
WEBApr 12, 2022 · NASA’s Hubble Space Telescope has determined the size of the largest icy comet nucleus ever seen by astronomers. The estimated diameter is approximately 80 miles across, making it larger than the state of Rhode Island. The nucleus is about 50 times larger than found at the heart of most known comets. Its mass is estimated […]
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WEBOct 13, 2023 · NASA invites the public to virtually sail along with the Advanced Composite Solar Sail System‘s space journey using NASA’s “Eyes on the Solar System” visualization tool, a digital model of the solar system. This simulation shows the real-time positions of the planets, moons,….
NASA Awards Consolidated Operations, Management, …
WEBFeb 23, 2023 · The Consolidated Operations, Management, Engineering and Test (COMET) contract will provide vehicle assembly and integration, launch, and recovery operations for Artemis missions through 2033.
NASA’s NEOWISE Celebrates 10 Years, Plans End of Mission
WEBDec 13, 2023 · Since its reactivated mission began on Dec. 13, 2013, the space telescope has discovered a once-in-a-lifetime comet, observed more than 3,000 near-Earth objects, bolstered international planetary defense strategies, and supported another NASA mission’s rendezvous with a distant asteroid.
Comets - NASA Science
WEBExplore images of asteroids and comets taken by NASA's robotic spacecraft. National Space Science Data Center: Comets Fact sheets, FAQs, and information about missions to explore comets.
Hubble Snaps Close-Up of Celebrity Comet NEOWISE
WEBAug 21, 2020 · The inset image, taken by the Hubble Space Telescope on Aug. 8, 2020, reveals a close-up of the comet after its pass by the Sun. Hubble’s image zeroes in on the comet’s nucleus, which is too small to be seen. It’s estimated to measure no more than 3 miles (4.8 kilometers) across.
Hubble Observes 1st Confirmed Interstellar Comet - NASA Science
WEBOct 16, 2019 · NASA's Hubble Space Telescope has given astronomers their best look yet at an interstellar visitor — comet 2I/Borisov — whose speed and trajectory indicate it has come from beyond our solar system. This Hubble image, taken on Oct. 12, 2019, is the sharpest view of the comet to date.
NASA’s Hubble Observes the Farthest Active Inbound Comet Yet …
WEBSep 28, 2017 · NASA's Hubble Space Telescope has photographed the farthest active inbound comet ever seen, at a whopping distance of 1.5 billion miles from the Sun (beyond Saturn's orbit).
New Comet Discovered | NASA Jet Propulsion Laboratory (JPL)
WEBA new comet that will pass close to Earth early next week has been discovered by scientists working on the international Infrared Astronomical Satellite project. The comet first appeared in data sent to Earth on April 25, in IRAS' routine search for asteroids.