A single pale rock in an ancient Martian riverbed is forcing scientists to rethink when, where, and how life might have taken ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto.

4:56 About two-and-a-half hours before the engine firing, commands are sent to fire small onboard thrusters to "desaturate" or unload the momentum of the spinning reaction wheels. These devices are ...

It has been a while since we last heard the specifics about Elon Musk’s plan to colonize Mars. With the biggest space rocket in history, Starship, launching its first test mission around the Earth, it ...

Speaking to SpaceX employees in Texas, Musk described the goal of sending humans to Mars as essential “for the long term survival of civilization." Under his vision, humans would not just step on the ...