5 Years Ago: First Flight of the Falcon Heavy Rocket

More than 100 Moon missions are planned in coming years, which means space junk near the Moon could become a major problem. That's why two astronomers are currently building a catalog to track lunar trash.

Stack it up! ULA assembles 1st Vulcan Centaur rocket ahead of debut launch (photos)

Relativity Space stacks 3D-printed rocket on launch pad ahead of 1st flight