Researchers may have detected signals from the universe’s first stars
chinatopwin
chinatopwin
2018-03-01 09:42:59
in Nature, researchers describe what may be evidence of when the first stars began to form. After
theBig Bang, which took place some 13.7 billion years ago, the universe was dark, hot and full of
high-energy particles. Photons couldn't survive, but after around 380,000 years, the universe
cooled enough to allow light to actually stick around. That's when the cosmic microwave
background (CMB) came to be. It's our universe's first surviving radiation and researchers have
looked to it in order to learn more about the earliest years of our universe.