NASA's Juno spacecraft made a close flyby of Jupiter moon lo. See an animation of the images the probe captured created by ...

Be sure to look up for one of October's most beautiful sky pairings Cheng Xin/Getty On Monday, Oct. 13, into early Tuesday, Oct. 14, the moon and Jupiter will appear side by side just before midnight ...

The hellish surface of a moon of Jupiter known as Io is riddled with hundreds of lava-spewing volcanoes that make the world one of chaos and violence. The brutal conditions also make Io intriguing to ...

If there's no magma ocean, where does the 'melt' come from that emerges from the volcanoes as lava? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The action will happen in the east-northeast night sky about ...

Look to the east in the hours preceding sunrise on Aug. 20 to see a thin crescent moon rendezvous with Venus and Jupiter to form a celestial triangle in the predawn sky. Want to see the planets of the ...

How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it seems. When you purchase through links on our site, we may earn an affiliate ...

A comet from another star system will swing by Mars on Friday as a fleet of spacecraft trains its sights on the interstellar visitor. We already know a decent amount about how planets form, but moon ...

NASA has launched a mission to Europa, an icy moon of Jupiter thought to harbor a vast ocean. The moon is considered one of the most promising places in the solar system to search for extraterrestrial ...