NASA aims to travel to the moon again—and beyond. Here’s a look at the 21st-century race to send humans into space.

Prediction market traders think a human colony on Mars is unlikely, and SpaceX itself did not specify a timeline in its ...

SpaceX incentivizes Musk to create a million-person colony on Mars. But in his lifetime, that’s not realistic.

Scott Solomon is an evolutionary biologist. We spoke to him about what our descendants in future settlements on the Red ...

Neil Armstrong and Buzz Aldrin became the faces of the Moon landing era. Elon Musk’s Mars era may get a very different public face in Chun Wang, a cryptocurrency billionaire whose fortune traces back ...

The dream of humans living on Mars has existed for decades, and in recent years it has moved closer to serious scientific and ...

The idea of humans living on Mars is closer to reality than it's ever been. On Feb. 13, Elon Musk's SpaceX ferried an international crew of four astronauts to the International Space Station, another ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. SpaceX's founder shocked the space world when he said he's freezing his crusade to begin ...

Texas A&M is using a centrifuge to better understand how the human body responds to low-gravity environments such as those on ...

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.