Recent observations suggest that Jupiter’s volcanic moon, Io, could be significantly hotter than scientists previously ...

Don’t miss the moon’s close pass by Jupiter and Pollux this Sunday evening while the iconic constellation Orion rises in the ...

If you do check out Jupiter with a small telescope on Sunday night, you'll see all four Galilean moons, with Ganymede and Io on one side of Jupiter and Europa and Callisto on the other. The ...

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.

Jupiter’s volcanic moon has always felt like a place that tests your sense of what a world can be. Its surface glows with ...

Turn a telescope to the eastern sky in the hours following midnight on Nov. 5 to see two colossal shadows darken the cloud tops of the gas giant Jupiter as the Galilean moons Io and Europa pass ...

On 9, Jupiter will appear near the Moon in the night sky, offering stargazers a stunning view and chance to observe Jupiter’s moons.

But as researchers have discovered more moonlike objects in our solar system—including 128 moons orbiting Saturn just this ...

This weekend, the moon will work together with two planets to put on a sky show worth pulling out a telescope for. Jupiter and Saturn will align, with the moon appearing at a different point between ...

On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated ...

Using data from NASA's Juno spacecraft, scientists have discovered that the solar system's most volcanic body is even hotter ...