Mars, our neighboring red planet, possesses some of the most extreme topographical features within our solar system. Its colossal volcanoes, canyons and impact craters offer clues into its ...

There are a couple potential explanations for distinctive markings found on a Martian rock, but new evidence suggests they ...

A rocky stretch in Western Australia's Pilbara, near Earth's earliest-confirmed lifeforms, was hit by a meteorite about 3.5 ...

The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity—or not ...

but this ancient shoreline on Mars seemed to lie inside a 2,050-mile-wide (3,300-kilometer-wide) impact crater called Utopia Basin. Utopia Basin is, in fact, the largest known crater in the entire ...