The long-serving space telescope observed the supernova in a galaxy 150 million light-years away which released 2.5 billion times more energy than the sun. When you purchase through links on our site, ...

A new look at the debris from an exploded star in our galaxy has astronomers re-examining when the supernova actually happened. Recent observations of the supernova remnant called G11.2-0.3 with ...

An artist's impression of cosmic rays impacting molecules and atoms in the Earths atmosphere. A new study suggests that cosmic radiation from a supernova explosion 2.5 million years ago may have ...

When scientists aimed the European Space Agency's X-ray observatory, XMM-Newton, at two mysterious lights on the outskirts of the Large Magellanic Cloud, they discovered an unexpected source: two ...