What drives us to send probes throughout the solar system and rovers and landers to Mars? It's not cheap, and it's not easy.

PHOENIX -- The last several days have been rough for the Phoenix Suns. Phoenix backed up a four-game win streak that dated back to March 17 with a pair of low-energy defeats at the hands of the ...

Where are all the aliens? It's a question that goes back to Enrico Fermi, an Italian-American physicist who was a member of ...

Some worlds orbit two suns — and some orbit no star at all. From boiling-hot gas giants to worlds with bizarre weather patterns, here are five of the weirdest exoplanets scientists have discovered so ...

Phoenix entered Friday’s bout at Target Center as a winner of four of its previous five games. The Suns need every win they ...

The planets are all too hot for life as we know it, but astronomers haven’t given up searching for more planets in Barnard's Star's habitable zone. Scientists have confirmed the existence of ...