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 ...

Galileo’s warning about scientific consensus still resonates centuries later as modern discoveries continue overturning ...

A new study suggests Ganymede—our neighborhood's biggest moon—still has a hot, churning core cranking out its unique magnetic ...

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

The largest moon in the solar system — Jupiter’s Ganymede — has a unique and inexplicable magnetic field. New research could finally explain it: the moon is heating up.

See dazzling planets, the Milky Way and a trio of celestial animals brightening the spring sky around May's new moon.

A new study reanalyzing 14 years of Hubble data weakens evidence for water vapor plumes on Europa, though scientists say the ...

The frozen worlds orbiting Jupiter and Saturn might be encapsulated in "fluffy ice" that could send landers spiraling down a ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Galileo Galilei’s powerful quote about reason, intellect and truth still resonates today. Discover its deeper meaning, origin ...

Are you familiar with the constellation Crater the Cup? If not, don’t worry — you’re about to spot it tonight. This mid-sized constellation, measuring 53rd in size among the 88 official constellations ...