supernova

How stars explode as supernovae — Type Ia, core-collapse, kilonovae, famous examples, and why every iron atom in your body came from one.

Stars don't burn out quietly. Depending on their mass, they end their lives as cooling embers, supernova explosions, neutron stars, or black holes. Here's what actually happens.

A supernova outshines an entire galaxy for weeks. It also forges every element heavier than iron — the calcium in your bones, the iodine in your thyroid, the gold in jewellery. Here's how they work.