Category: Space > Supernova
When massive stars collide in a cataclysmic event known as a supernova, the remnants can form incredibly dense objects called neutron stars. These stars are so compact that a sugar-cube-sized amount of neutron-star material would weigh about 6 billion tons on Earth! The collision not only produces a neutron star but can also lead to the emission of gravitational waves—ripples in spacetime that travel at the speed of light. This cosmic phenomenon provides astronomers with a unique way to study the universe, as the detection of gravitational waves from such collisions offers insights into the behavior of matter under extreme conditions and the fundamental nature of gravity itself.