Add Yahoo as a preferred source to see more of our stories on Google. This artist's concepts shows a hypothesized event known as a superkilonova. A massive star explodes in a supernova (left), which ...

The universe may contain extremely dense and exotic hypothetical cosmic objects known as strange quark stars. While astrophysicists continue to debate quark stars' existence, a team of physicists has ...

Neutron stars explained through the final moments of massive stars reveal some of the most extreme objects in the universe. When stars between eight and twenty times the Sun's mass exhaust their ...

Neutron collisions are cosmic events of immense power that have the ability to forge some of the universe’s most precious elements, including gold. These astronomical phenomena provide a unique ...

When certain large stars use up all their nuclear fuel and die, they collapse and detonate, creating a supernova. These end-of-life events are some of the most energetic in the universe, and send ...