A rare rock from Mars known as Meteorite NWA 16788 will be up for auction at Sotheby's on July 16. The meteorite may sell for as much as $4 million, according to the auction house.

The rock was discovered on Nov. 16, 2023, by a meteorite hunter in a remote part of Niger in West Africa. It is about 70% larger than the next biggest piece of Mars rock on Earth, per Sotheby’s.

But these old rocks were one of the rarest minerals found on Earth. Until the discovery, only about a snowball-sized amount ...

The meteorite was discovered in Niger in November 2023 and is 70% larger than the next biggest piece of Mars recovered on ...

The largest Mars meteorite ever found on Earth was sold at a Sotheby's auction in New York on Wednesday for $5.3 million.

The map locates the Nuvvuagittuq Greenstone Belt in Canada, home to some of the oldest rocks on Earth. Earth formed about 4.5 billion years ago from a collapsing cloud of dust and gas, soon after ...

Scientists have identified what could be the oldest rocks on Earth from a rock formation in Canada. The Nuvvuagittuq Greenstone Belt has long been known for its ancient rocks — plains of ...

By 4.35 billion years ago, Earth might have cooled down enough for the first crust to form and life to emerge. However, very little is known about this early chapter in Earth's history, as rocks ...

The largest piece of Mars ever found on Earth has sold for just over $5 million at a Sotheby's auction in New York.