Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

Loki Patera is 202 kilometres (126 mi) in diameter, covers 20,000 sq km (7,700 sq mi), and was the largest volcanic feature found on Io until these new observations revealed the hot spot in the south ...

However, a new study has found chorus waves much farther from Earth than scientists thought possible, suggesting that changes in the frequency of a magnetic field can also create chorus waves.

Jupiter has many moons, including Europa, Ganymede, Io, and Callisto ... the spin is called retrograde rotation. Its magnetosphere is tipped almost 60 degrees from its axis of rotation.

Juno’s findings have already transformed how we view Jupiter, uncovering a wildly dynamic atmosphere, a powerful magnetosphere, and moons like Europa and Ganymede with stories ... in the clouds or ...

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, ...

and the interaction between solar wind and Earth's magnetosphere. The lander will also deploy a laser reflector array that will help scientists measure the Earth-moon distance.

It is a Japanese-led commercial mission. Astronauts won't be walking on the moon until 2027, but you’ll see a lot of rockets heading there this year, part of an ambitious series of uncrewed ...

Though Ganymede’s ordeal struck me as nothing short of horrific, a crasser part of me jumped at the opportunity: a gritty retelling, I thought, practically wrote itself. But to pen the definitive ...

At 7:36 a.m. EST, today is every stargazer’s favorite moment of the month — the new moon. This lunar phase sees the moon roughly between the Earth and the sun, making the moon invisible but ...

By Becky Ferreira For a few months last fall, a school-bus-size space rock named 2024 PT5 gained fame as Earth’s new “mini-moon.” Astronomers rushed to study the object while it was still ...

A private U.S. spacecraft bound for the moon has captured stunning images of Earth one week into its flight. It carries experiments for NASA, part of the space agency's effort to return astronauts ...