The team still can't confidently rule out the existence of Europa's water vapor, especially as similar plumes have been more ...

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

A newly identified planetary system is giving scientists fresh clues about how giant worlds form in the earliest stages of a ...

In a new study, researchers reanalyzed the first year of observations from NASA’s Transiting Exoplanet Survey Satellite (TESS ...

The planet coined WASP-94A b is a “ hot Jupiter ,” a gas giant roughly in the same broad family as Jupiter but orbiting much ...

Looking for a sky event this week? Check out our full Sky This Week column. May 21: Check in on Saturn and Mars Tonight we're ...

TOI-199 b, a rare temperate giant planet, sits between scorching hot Jupiters and frozen gas giants, and JWST has found ...

This weekend, skywatchers are in for a stunning celestial display as Venus, Jupiter, and Mercury create a rare alignment in ...

Astronomers believe Triton may not have originally formed around Neptune.

The moon will pass in front of Regulus for some observers on May 23, blocking its light.

Sky This Week is brought to you in part by Celestron. Friday, May 22Uranus is in conjunction with the Sun at 10 A.M. EDT, so ...

Spectacular astronomical events like meteor showers and partial lunar eclipses will be visible across the country this summer ...