Most of us have a rough picture of space in our heads, but that picture is usually based on films, school posters, and a few mind-blowing facts we half-remember. We hear that space is huge, but our ...

Starship is the centerpiece of Musk's vision of sending the first humans to Mars, and is also critical in NASA's plans to return astronauts to the moon's surface for the first time in five decades.

In a new book, NASA astrobiologist Caleb Scharf says the fate of life on Earth may hinge on leaving our planet behind The multibillion-year story of life on Earth is defined by a handful of epochal ...

Since then, more than 280 spacefarers from 26 countries have visited the International Space Station, including 170 from the United States alone. Seven people are living aboard the International Space ...