A massive star may have burst, leaving behind two dense, dead cores, which then collided and caused another explosion ...

Describing matter under extreme conditions, such as those found inside neutron stars, remains an unsolved problem. The density of such matter is equivalent to compressing around 100,000 Eiffel Towers ...

"We do not know with certainty that we found a superkilonova, but the event nevertheless is eye-opening." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Astrophysicists are turning the universe’s dying stars into laboratories for one of physics’ most elusive ideas, the axion. By tracking how stellar corpses cool, flare and radiate, they are testing ...

A spoonful of this star's matter can weigh a billion tons. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. By developing a new theoretical ...