NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. Here's a look at the latest photo of the intriguing ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

Several sugars have been found on a sample of the asteroid Bennu, which may provide scientists with clues about our early ...

Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

Of the seven Earth-sized worlds orbiting the red dwarf star TRAPPIST-1, one planet in particular has attracted the attention ...

"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of Earth’s mantle and ejecting a huge debris disk that later formed the moon.

Nearly 4.5 million years ago, two large, hot stars brushed tantalizingly close to Earth's sun. They left behind a trace in ...

An encounter with a cold cloud of gas and dust could have caused our planet's "protective giant bubble" to draw back. When you purchase through links on our site, we may earn an affiliate commission.

Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense ...

About 4.5 million years ago, a great cosmic dog kicked past our Solar System – and its effects may still be seen today.

Scientists find that two hot stars passed near our solar system 4.4 million years ago, altering nearby interstellar clouds.