NASA’s Webb Finds Water, and a New Mystery, in Rare Main Belt …
May 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 …
Hubble Confirms Largest Comet Nucleus Ever Seen - Science@NASA
Apr 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 […]
Ancient Oort Cloud Comet to Make First Documented Pass By
Oct 2, 2024 · The Oort Cloud comet, called C/2023 A3 Tsuchinshan-ATLAS, was discovered in 2023, approaching the inner solar system on its highly elliptical orbit for the first time in documented human history.
All NASA News - NASA
Oct 13, 2023 · Comet C/2023 A3 (Tsuchinshan-ATLAS) passes over NASA’s Michoud Assembly Facility in New Orleans in this Oct. 13, 2024, image. This comet comes from the Oort Cloud, far beyond Pluto and the most distant edges of the Kuiper Belt.
Ancient Comet Makes Appearance - NASA
Oct 11, 2024 · The comet hails from the Oort Cloud, which scientists think is a giant spherical shell surrounding our solar system. It is like a big, thick-walled bubble made of icy pieces of space debris the sizes of mountains and sometimes larger.
NASA Awards Consolidated Operations, Management ...
Feb 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.
What’s Up: October 2024 Skywatching Tips from NASA
The comet, known as C/2023 A3, aka Tsuchinshan-ATLAS, is currently speeding through the inner solar system. It passed its closest to the Sun in late September, and will be at its closest to Earth on October 13th.
NASA Live - NASA
5 days ago · NASA TV live: Watch live broadcasts from NASA Television and NASA's social media channels, and a schedule of upcoming live events including news briefings, launches and landings.
Comets - NASA Science
Explore 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.
NASA’s NEOWISE Celebrates 10 Years, Plans End of Mission
Dec 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.