Astronomers have identified what appears to be a cosmic smoking gun for a historic supernova explosion, a find that may also help with the search for elusive dark energy in the universe. The new ...

When stars die, they go out kicking and screaming. Astronomers capture the early stages of a supernova explosion for the first time. Eric Mack has been a CNET contributor since 2011. Eric and his ...

The strikingly bright shock waves from a massive star explosion first observed in 1987 can still be seen today, three decades later. This brilliant star explosion, called Supernova 1987A, occurred ...

In space, things frequently go boom. And recently, on Oct. 9, astronomers observed an extraordinarily colossal boom. NASA's Swift Observatory, which is specifically designed to spot the most powerful ...