Turn a telescope to the eastern sky in the hours following midnight on Nov. 5 to see two colossal shadows darken the cloud ...

Io is the most volcanic body known to science, and researchers have puzzled over its history for years. A new report suggests it was born this way. This image revealing the north polar region of the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The Juno mission ...

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 ...

In 1979, NASA Jet Propulsion Laboratory (JPL) scientist Linda Morabito discovered volcanic activity on Jupiter’s innermost moon, Io. But Io isn’t just volcanically active—it is the most volcanically ...

The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up next to the "King of the Planets" as it voyages through the stars of the constellation Gemini.

Turn your eyes to the east in the early morning hours of Sept. 16 to see the moon conspire with Jupiter and the bright stars of the Gemini constellation to create a lopsided rectangular formation in ...

A spacecraft that will study one of Jupiter’s moons launched Monday on a journey of more than six years to discover if the moon has the ability to support life. The solar-powered spacecraft Europa ...