Two icy moons of Jupiter, though neighboring and of similar size, exhibit radically different internal structures. A new ...

It's popularly understood that no one can hear you scream in space, and yet, scientists have captured some pretty strange ...

YR4 made headlines earlier this year when its probability of impacting Earth in 2032 rose as high as 3%. While an Earth ...

Legendary Apollo astronaut Rusty Schweickart and Mary Robinette Kowal, who created alternate-history astronauts in her Lady ...

Researchers armed with the Hubble Space Telescope have revealed that some of Uranus' largest moons have one side brighter ...

Ganymede, which is 50% larger than our own moon, has an ocean beneath its icy surface – up to 60 miles deep – and is suspected of being able to support primitive life.

A new study revealed that a massive asteroid may have hit Jupiter’s moon Ganymede about 4 billion years ago, shifting the moon on its axis. CNN values your feedback 1.

An ancient impact Ganymede has long intrigued Hirata, who said he believes uncovering its evolution is “meaningful.” The moon’s surface is a study in contrasts, with bright regions of ridges ...

Ganymede is the largest moon in the solar system, and it’s slightly bigger than the planet Mercury. Even so, the monstrous asteroid that slammed into it would have rejiggered that world inside ...

At nearly 3,300 miles in diameter, Ganymede is also the solar system’s largest moon—bigger even than the 3,030-mile wide planet Mercury. But that doesn’t mean it’s impervious to a pounding.

A colossal asteroid slammed into Jupiter's largest moon Ganymede with so much power it dramatically and permanently reoriented the moon roughly 4 billion years ago, new research suggests.

Diagram of the ancient Ganymede impact sending the moon tilting. Kobe University. 3 / 4. Image showing the fractures caused by the impact and the impact site (red cross) Kobe University. 4 / 4.