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

Astronomers believe Triton may not have originally formed around Neptune.

Dr Sarah Alam Malik suggests Saturn's moons Titan and Enceladus, and Jupiter's moon Europa, may host conditions suitable for ...

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

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

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

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 ...

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 ...

Polar bears aren't white, strawberries aren't berries and the Earth isn't round—we'll have you rethinking everything you ...