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 ...

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 ...

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 ...