Long before the full moon rises, shifting sunlight transforms the lunar surface into one of the sky's best telescope targets.

Discovery led by UC Santa Cruz Ph.D. of daily cloud cycle on a hot Jupiter exoplanet provides unique window into its make-up ...

Astronomers using NASA’s James Webb Space Telescope have uncovered a rare world unlike anything in our solar system — a giant planet about the size of Saturn with surprisingly Earth-like temperatures ...

Neptune has a complicated life story, and its moon Nereid might be the only one left standing from the planet’s ...