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 ...

"Our study provides a new direction to understand the whole evolutionary history of massive stars toward the formation of ...

A massive supernova explosion that destroyed a faraway star apparently turned the left over stellar corpse inside out as well, scientists say. Using NASA's Chandra X-ray Observatory spacecraft, a team ...

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 ...

Kepler's Supernova, which is named after German astronomer Johannes Kepler, was one of the more popular supernovas in the visible universe, and it's one of the more recent supernovas to have been ...

Astronomers have spotted a record-breaking supernova — the largest ever observed. The spectacular stellar explosion released enough light to cover its entire galaxy, outshining normal supernovae by ...

A new video shows the evolution of Kepler's Supernova Remnant using data from NASA's Chandra X-ray Observatory captured over more than two and a half decades. In 1181 AD, a bright "guest star" was ...

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 ...