Fifty years ago, Bob Dylan had only just gone electric, mankind had yet to take its great leap and many people thought the Big Bang was something that happened when you burst a Big Balloon.
Jul 24, 2015 in Astronomy
When the first galaxies started to form a few hundred million years after the Big Bang, the Universe was full of a fog of hydrogen gas. But as more and more brilliant sources—both stars and quasars powered by huge black ...
Jul 22, 2015 in Astronomy