The smashups are thought to have occurred at least 100 million years ago, but the moons they created are new to astronomers.

Europa, one of Jupiter’s intriguing moons, is hiding an ocean beneath its icy shell — an ocean that might harbor alien life.

Illustrations by the 17th-century astronomer Cassini (a-c), compared with Jupiter's current Great Red Spot as captured by Eric Sussenbach in 2023. Disclaimer: AAAS and EurekAlert! are not ...

An artist’s conception of the exoplanet K2-33b, a 10 Myr Jupiter-sized planet, transiting in front of its active host star. This system is comparable to those which will be observed by the ...

When Jupiter was young, about 4.5 billion years ago, a protoplanet with 10 times the mass of Earth crashed head-on into its surface. The impact shook Jupiter to its core - literally. That's the ...

And last month, Jupiter, Mars, Venus and Saturn were all visible in the night sky - and no binoculars were needed to see them. As far as all the planets being specially aligned, there really wasn ...