The Martian rock, known as NWA 16788, is 70% larger than the next biggest piece of Mars that has been recovered, according to the auction house.

One lucky bidder will soon fork over millions of dollars to take home NWA 16788, a 54-pound (24-kilogram) Martian meteorite.

Earth's Martian material goes up for auction at a prestigious auction house this week. The estimate? $2-4 million in Earth ...

Among items going up for auction at Sotheby's in New York is a 54-pound rock that the auction house calls the largest piece ...

The largest Martian meteorite found on Earth to date is expected to fetch up to $4 million at auction in New York.

The largest-known piece of Mars to be found on Earth will be up for bid and could be sold for up to $4 million at auction.

A 54-pound meteorite from Mars sold for more than $5 million when it went up for auction on Wednesday at Sotheby's.

It sold for more than the maximum estimated price of $4 million. On Wednesday (July 16), the largest Mars meteorite on Earth was auctioned off at Sotheby's in New York City for $4.3 million.

It's another meteoric rise for what's called the largest piece of Mars on Earth. The 54-pound rock fetched nearly $5.3 ...

The largest Mars meteorite ever found on Earth was sold at a Sotheby's auction in New York on Wednesday for $4.3 million.

A massive chunk of Mars, known as NWA 16788, is expected to fetch up to $4 million when it goes under the hammer at Sotheby’s ...