This era extends to ten trillion trillion trillion years after the big bang. Most of the mass that we can currently see in the universe will be contained in stars that have blown up and collapsed ...

Five years later, after tracking the movements of these spiraling disks, Hubble and his assistant, Milton Humason, had revealed something even more astounding: The universe is swiftly expanding ...

People talk about the universe ... revealed a strange asymmetry in the background radiation. Astronomers still don’t know what caused this. And while the new pictures don’t challenge the Big ...

Prior to the Big Bang, researchers say black holes were created as a result of the universe contracting and this could ...

After writing a 400-page book on string theory and then helping NOVA translate ... that the big bang could have produced a string so large that it would be present in today's universe and could ...