feb 292012
Searching for the First Stars

This artist’s concept shows what the very early universe might have looked like, just after its first stars began bursting onto the scene. (Credit: NASA/JPL-Caltech/R. Hurt (SSC)) Recently, astronomers found two immense clouds of pristine gas, nearly 12 billion light years away — clouds that astronomers suspect are the stuff from which the first stars [continue reading]