Gamma-ray bursts (GRBs) may be the most powerful explosions in the entire universe, but they can sometimes go completely unnoticed. Despite being able to release as much energy in seconds as the Sun ...

(Craig Taylor/iStock/Getty Images Plus) A sprinkling of radioactive plutonium atoms hidden in the ocean floor may trace back to a cosmic cataclysm more than 100 million years ago. What's more, that ...

The Sun has been restless all week. It has been flaring, erupting, and sending clouds of magnetised gas hurtling into the solar system one after another, like a city letting off fireworks it cannot ...