The next generation of space stations will not be assembled piece by piece like orbital Lego sets. Instead, companies are ...

NASA is edging toward a milestone it has not attempted in more than half a century: sending astronauts around the moon on a ...

Even most rocket scientists would rather avoid hard math when they don't have to do it. So when it comes to figuring out ...

Beneath the moon's cratered surface lie networks of lava tubes and deep pits, natural caves that could shelter future lunar ...