Orbital dynamics show that President Trump’s pledge to land astronauts on Mars couldn’t happen until 2029 at the earliest.

Elon Musk, the world's favorite chaos architect is no stranger to stirring up headlines—and not always for his rocket ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Extraplanetary spacefaring has a hoary history in science fiction. Elon Musk, our so-touted Mars visionary, is an avid sci-fi ...

NASA reaffirms it is working with SpaceX to bring back the Starliner crew from the International Space Station. Read more.