W hen Apollo 11 astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins returned from their mission to the Moon, they brought with them tales of what it was like to be the first humans standing on ...

It's an age-old debate in space circles: Should humanity's first city on another world be built on the moon, or on Mars? As recently as last year, SpaceX founder Elon Musk saw missions to the moon as ...

You can probably conjure this vision of the moon—hold the image in your mind and transmit it off this planet and onto our shining opalescent companion. Peaks in the sun? I’ve seen that. This week, we ...