When Dr. Henry Hsieh entered graduate school, he was interested in comets for a fairly simple reason: they seemed exciting.

On Monday, September 11, 2006, the first episode of Astronomy Cast was promoted across the Internet. Twenty years later, on ...

Hands-on Earth and space science workshops for elementary and middle school educators in Tucson and Southern Arizona. Using NASA data, current research, and classroom-ready activities, PSI workshops ...

This archive site provides access to asteroids, dust, planetary satellites, meteorites, and selected other small solar system bodies and laboratory data from the NASA Planetary Data System. CosmoQuest ...

While new chemical species will be added to the database of CRYOCHEM (NH 3, H 2 O, HCN, and CO 2) and its companion FREZCHEM (clathrate hydrates of N 2, C 2 H 6, and C 3 H 8), the solid-phase part of ...

NASA’s Nancy Grace Roman Space Telescope, scheduled to launch August 30th, is designed to tackle some of the biggest ...

Top: Black and white image of the Moon from Moon Mineralogy Mapper data. Bottom: Map of water on the Moon. The different colors represent different shapes to the water absorption and correlate with ...

Oct. 28, 2024, TUCSON, Ariz. – The Moon and Mars are pocked with giant impact craters acquired very long ago, while there appears to be a dearth of them on Earth and Venus. Time may have healed many ...

Long period comet C/2006 P1 (McNaught) over the Pacific ocean, as imaged from Paranal Observatory in 2007. Credit: ESO/Sebastian Deiries The Gaia mission has allowed researchers to understand the ...

Candice Hansen-Koharcheck, a Planetary Science Institute senior scientist since 2010, died on April 11 after a valiant three-year battle with cancer. Her career spanned nearly 50 years, during which ...

Observations of the North Polar Layered Deposits exhibiting spiral troughs that confound flow models. Left: Mariner 9 image taken in 1972. (Credit Credit: NASA/JPL) Right: Mars Express image taken in ...

Lava tubes are high priority targets for in situ exploration of Mars, with the potential to provide access to subsurface cavities that could facilitate scientific studies of the Martian subsurface as ...