Elon Musk and President Trump’s detente may benefit them, but restoring Musk’s influence and access to NASA funds offers little to the public; a Mars colony is costly, risky and misguided.

NASA’s SpaceX Crew-11 mission safely splashed down early Thursday morning in the Pacific Ocean off the coast of San Diego.

Four astronauts returned to Earth early Thursday morning after leaving the International Space Station a month early because ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if Mars weren't there?" ...

Mars had an Arctic-sized ocean, and scientists are only now beginning to see the outline of it. For a long time, the planet ...

Two Americans and astronauts from Japan and Russia landed in a SpaceX capsule in the Pacific Ocean after a medical issue ...

New research suggests Mars was once a blue planet, as scientists identify river deltas and signs of a vast ancient ocean on ...

Researchers uncover how Mars affects Earth’s orbit, offering new insight into the planetary forces behind ice ages.

The red planet was half blue, according to space scientists. A research team using images from cameras on Mars-orbiting ...

Study finds Mars helps pace Earth's ice ages through gravity. Remove Mars, and a major 2.4-million-year climate rhythm ...

Why did the ice ages occur? If you need a scapegoat, a new study by Stephen Kane of UC Riverside suggests pointing the finger ...

A study by scientists at Penn State and NASA shows that intact biomolecules from dormant microbes break down much more slowly ...