For the first time in its 25-year history, all eight docking ports on the International Space Station are occupied, according ...

A 2023 astronaut photo shows three dark hills, or mesas, towering above part of the Sahara desert in southern Mauritania. The ...

Scientists have mapped out ancient, large-scale river systems across the surface of Mars, providing compelling evidence of ...

The Eye of the Sahara looks almost designed for satellite cameras, a perfect bullseye of rock and sand stamped into the ...