For generations, humans have dreamed of leaving Earth and exploring new worlds. From the first steps on the Moon to modern ...

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

Staying alive. That’s what the priority will be each morning for the first humans on Mars. Astronauts will start each day – or sol, as a day on Mars is called – by checking life-support systems, ...

Astrophysicist and science writer Adam Becker discusses why the dream of life on Mars may be out of reach, maybe for ...

EIGHT years from now a planetary probe could boost itself out of Earth’s orbit, fire up its fission reactors and head off on a nuclear-powered quest for alien life beneath the crust of one of ...

FIfty years after the Viking missions landed on Mars, Lockheed Martin is planning for the next steps to the Red Planet ...