This Mars rock is up for auction at Sotheby's in New York City this week, which is why it's currently on display in the Upper ...

A 54-pound (25-kilogram) rock. Estimated auction price: $2 million to $4 million. Why so expensive? It's the largest piece of ...

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

Sotheby’s in New York will be auctioning the largest martian meteorite ever found on Earth on Wednesday as part of a natural ...

New discoveries by NASA's Curiosity Mars rover may not only explain why the Red Planet is a dry, lifeless desert, but that it ...

Wealthy astronomy fans can secure a large piece of Mars at an auction in New York. The Martian rock is expected to fetch between two and four million dollars.

Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

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 new map shows hidden Martian rivers stretching thousands of miles, offering fresh evidence of a warm, wet ancient Mars.

Understanding the similarities and differences of the deserts on Earth and Mars will help space travelers survive future ...