I f astronomers had been walking the Earth 466 million years ago, they may have had something special to see. The moon and ...

The ring would have gradually fallen to Earth as meteorites, correlating to a spike of impacts seen in the geological record.

Earth and Saturn might be a lot more similar than previously thought. In a new study, a team of researchers suggests that 466 ...

A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, ...

To reach that surprisingly conclusion, scientists studied the positions of 21 asteroid impact craters during the Ordovician period – the second of six periods in the ...

The rings of Saturn are among the most famous and spectacular features in the solar system. Earth may once have had something similar.

The deposits are the remains of a long-ago dried-up ancient body of water, which left behind the emoji-life remnant that is ...

Stunning new images from the ExoMars orbiter reveal ancient salt deposits on Mars, even forming a smiley face.