As the ancient planet Theia struck its glancing blow into Tellus, the planet that would become Earth, part of its mantle sloughed off into that of the planet it had struck, but some drove on past, ...

NASA's first major disaster, the Apollo 1 fire that killed three astronauts 45 years ago today, marked a dark day for the space agency. But it also marked the beginning of NASA's continual process of ...

The passage of half a century has blurred many of the reasons that the United States was able to accomplish what seemed like science fiction: the July 20, 1969, landing of Apollo 11 on the moon. The ...

More than 50 years ago, humanity landed on the Moon and changed our understanding of our place in the universe forever. But that's not the only thing that lunar road trip indelibly altered — the ...