NASA selected three new scientific investigations and their payload suites to advance our knowledge of the Moon and help pave the way for building humanity’s

Everything from sand to summer vacations is projected to change in the Grand Canyon as the river’s flows are reduced.

The Multiscale Physics of Clouds Across Planetary Atmospheres collaboration, funded by the Simons Foundation, is seeking 8 postdoctoral researchers to develop new approaches to understanding clouds ac...

OCTOBER 1-3, 2026 | GREEN VALLEY, ARIZONAFREE & OPEN TO THE PUBLIC!*Free tickets are required for Light Speed Lectures. Up Close with VERITAS tours at Whipple Observatory are paid ticket...

We detect a candidate fifth planet in the HR 8799 system, directly imaged with the JWST/NIRISS Aperture Masking Interferometer (AMI). The detected source lies just above a $3σ$ contrast curve at a con...

Ring systems have been found around several small bodies in the outer Solar System through stellar occultations. While such observations provide constraints on ring geometry and dynamical interactions...

Written by Don E. Wilhelms, 1993 The Arizona Board of Regents. Reprinted by permission of the University of Arizona Press

Uranus Orbiter and Probe: Mission Challenges and Concept Updates Since the Origins, Worlds, and Life Decadal Survey, Simon, Amy A., Anderson, Richard C., Gallagher, Daniel T., Amato, Michael J., Ellison, Donald H., Englander, Jacob A., Engelbrecht, Carl, Hatten, Noble, Saylor, Richard S., Beddingfield, Chloe B., Cartwright, Richard J., Chabot, Nancy L., Cohen, Ian J., Mandt, Kathleen, Nordheim, Tom A., Quick, Lynnae C.

Few space missions are run from university campuses. NASA's Pandora space has embarked on its mission to stare at worlds outside of our solar system and their host stars, all under the watchful eyes o...

The launch of the Nancy Grace Roman Space Telescope takes place live Sunday morning at 7:26 am EDT/4:26 am MST on NASA Live.

MAMMOTH, Ariz.— The Center for Biological Diversity, the San Carlos Apache Tribe and the Lower San Pedro Watershed Alliance sued the Trump administration today for approving exploratory drilling for a...