The red, brown and gray hunk is about 70% larger than the next largest piece of Mars found on Earth and represents nearly 7% ...

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

A 54-pound meteorite from Mars is expected to fetch up to $4 million when it goes up for auction later this month at ...

With Trump’s new budget cutting NASA science programs, the Mars Sample Return mission could be replaced by a private-sector ...

As it flew by Mars, the spacecraft's onboard camera snapped 22 pictures of the planet's surface, sending them back home to ...

The largest piece of Mars ever found on Earth is hitting the auction block and the estimated price for the 54-pound rock is ...

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

Without enough liquid water on the surface, a planet's atmosphere can become choked with carbon dioxide, raising temperatures ...

The largest-known piece of Mars ever found on Earth is going up for auction on Wednesday and could fetch as much as $4 ...

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