A giant chunk of the planet Mars could sell for up to an eye-watering $4 million at auction later this month, making it the ...

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 ...

New research shows how Mars may have undone its own habitability, while Earth stayed stable enough to support life.

A lab experiment that simulated Mars conditions showed that green algae can grow in plastic containers made from the same ...

As the sun grew hotter, so did Mars, prompting much of its atmospheric carbon dioxide to rain out and ultimately get locked ...

NASA's Perseverance rover is digging deeper into Mars' geologic past as it begins grinding into rock surfaces to expose ...

The Mars rover found geological formations in Gale Crater showing how water percolated beneath the surface, and ...

Algae grown under Mars-like conditions could make bioplastic building materials for structures to harbor life in space.

China’s Tianwen-3 Mars sample return mission could bring Red Planet rocks back to Earth as early as 2031—years ahead of competing U.S.-European efforts ...

One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at ...