Look east around 4 a.m. local time, just before dawn, to see the slender form of the crescent moon climb above the horizon.

The Moon and Jupiter share the morning sky as they rise together in Gemini the Twins. The pair is about 3° high in the ...

Two new moons have been discovered orbiting Jupiter, bringing the total number of natural satellites orbiting the gas giant ...

A long-standing mystery about the presence of hydrogen peroxide on Jupiter's icy ocean moon Europa may be closer to being ...

New observations from the James Webb Space Telescope (JWST) are painting a new picture of Jupiter's moon Europa and revealing ...

There's a new moon king in our solar system: 12 new moons were discovered around Jupiter, which makes it the planet with the most moons. Jupiter is already the biggest planet in our solar system.

While hunting for the elusive Planet X, astronomers have discovered 12 additional moons around Jupiter, bringing the grand total of the planet’s known satellites up to a whopping 79.

Jupiter already reigns as king of the planets — it's the largest one in our solar system. And now, the gas giant has the most known moons, too.Astronomers have observed 12 additional moons ...

That’s why the European Space Agency (ESA) just launched a spacecraft to explore these moons. The Jupiter Icy Moons Explorer, nicknamed “JUICE,” launched April 14 from Kourou, French Guiana.

Jupiter moons Callisto and Ganymede are among the biggest in the solar system, and potential grounds for liquid water and alien life. NASA's JUICE mission will probe them for signs of both.