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

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 ...

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

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

The experiments show a real chance of creating self-sufficient, closed-loop living spaces using shelters made from ...

July's full moon -- known as the Buck Moon or the Thunder Moon -- will light up the night sky on July 10 and be at its ...

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

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

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