Dark alien planet discovered by NASA
Scientists are unsure what causes the planet to be so dark, but they believe it could be 'a chemical we haven't even thought of yet.'
Scale of Universe - Interactive Scale of the Universe Tool...
Scale of Universe - Interactive Scale of the Universe Tool -
Wired Space Photo of the Day: Jets in Carina
Jupiter layer cake
Cosmologist claims Universe may not be expanding
Particles' changing masses could explain why distant galaxies appear to be rushing away.