Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth.

A meteorite that is the largest known piece of Mars on Earth is expected to fetch up to $4 million when it goes up for ...

Dark “slope streaks,” likely resulting from dust avalanches, stretch across an area of Mars called Acheron Fossae in this ...

If we're to land humans on Mars in the coming decades, we'll have to know what challenges await them when they get there.

New research might finally help us understand what happened to the water on Mars and rewrite everything we know about the Red ...

The more scientists study the Red Planet, the more they find unusual objects and patterns scattered across Mars' surface. As ...

A giant rock from Mars and a Jurassic-era dinosaur skeleton are set to go under the hammer at Sotheby’s this week.

After its voyage past Mars, Mariner 4 maintained intermittent communication with JPL and returned data about the interplanetary environment for two more years. But by the end of 1967, the spacecraft ...

A chunk of the Martian surface that made unlikely voyage to Earth will be available to highest bidder at Sotheby's auction in ...

Mariner 4, built by JPL in Pasadena, took the images on July 14, 1965. One of the mission's leaders reflects on decades of ...

Sixty years ago today, NASA’s Mariner 4 spacecraft took the first up-close images of Mars, changing humanity's understanding ...