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

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

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

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

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 ...

Compare Mars and Earth in size, atmosphere, gravity, and potential for life. Discover their differences and shared traits. Explore the mysteries of the Red Planet!

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

In all, there are only 400 known Mars rocks on Earth, comprising less than 1% of all known space rocks on the Blue Planet.

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

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

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 ...

The biggest piece of Mars on Earth is going up for auction The piece of Mars is 54 pounds and the estimated auction price is ...