The two planets, being the two brightest planets in view from Earth, will also be joined by Mercury.

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

Add Yahoo as a preferred source to see more of our stories on Google. Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than ...

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

Planetary alignments continue to capture public fascination because they make astronomy feel approachable and easy to ...

JWST has revealed a surprising daily cloud cycle on a distant hot Jupiter, giving scientists a clearer look at its atmosphere.

Venus, now an "evening star," remains the brightest object in the sky after the moon, while Jupiter shines higher above it ...

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 ...

North America’s celestial highlights for the weekend ahead, which also apply to mid-northern latitudes in the northern ...

The fifth planet from the sun, Jupiter is what watercolor dreams are made of. Vibrant bands of clouds ripple around its thick ...