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

The November full moon is upon us, heralding a spectacular natural light show as the largest supermoon of 2025 takes to the ...

This article lists the top 7 largest moons in our Solar System, detailing their size, the planet they orbit, and key ...

The ocean on Ganymede may have more water than all the water on Earth. In this artist’s concept, the moon Ganymede orbits the giant planet Jupiter. NASA’s Hubble Space Telescope observed aurorae on ...

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.

CAPE CANAVERAL, Fla. (AP) — NASA's Juno spacecraft has provided the first close-ups of Jupiter's largest moon in two decades. Juno zoomed past icy Ganymede on Monday, passing within 645 miles. It's ...

When searching for the unknown, classic physics wisdom holds that a bigger detector boosts the chances of discovery. A physicist is taking that advice to heart, advancing a bold plan to use none other ...

A historic mission to Jupiter is about to blast off. The European Space Agency’s spacecraft nicknamed Juice—for Jupiter Icy Moons Explorer—is set to begin an eight-year journey toward the planet and ...