The Hubble Space Telescope has reached the jaw-dropping milestone of discovering more than 6,000 new worlds. The joint NASA/ESA mission searches for planets in outer space, potentially looking for a ...

The Space Shuttle Discovery, one of the most flown orbiters in NASA history, is at the center of an escalating political fight over whether the spacecraft should be pulled from the Smithsonian’s ...

We're getting closer and closer to definitely answering the question: Did life ever exist on Mars? April has been a pivotal month for the search for ancient life on the now-barren red planet, where ...