A long time ago, in a galaxy far, far away, a massive star collapsed, triggering a supernova explosion so bright it could be ...

Carl Sagan wrote in the June 1974 issue of Astronomy: “Clearly the best time to be alive is when you start out wondering and end up knowing. There is only one generation in the whole history of ...

"This is a unique opportunity to learn how the universe's first light emerged from the darkness." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Even the most powerful telescopes are in peril as orbits above Earth fill with thousands of new satellites. But scientists aren’t ready to give up the night sky. By Lyndie Chiou Lyndie Chiou ...