Jupiter’s most famous storm is slimming down, spinning up and behaving in ways that challenge what scientists thought they knew…

For decades, Jupiter’s moon Europa has been cast as one of the solar system’s best bets for alien life, a…

The International Space Station is about to feel a lot emptier. After a medical emergency cut short SpaceX’s Crew-11 mission,…

The James Webb Space Telescope has turned its infrared gaze on the early universe and found something that should not…

For a generation, cosmologists have treated dark energy as a fixed backdrop, a steady pressure stretching space faster and faster…

For decades, Europa has been the optimistic counterpoint to a lonely solar system, a small icy world that seemed to…

Hints of impossibly bright, massive objects in the infant universe have forced astronomers to rethink how the first cosmic structures…

Far from being solid bullets of rock, many asteroids are fragile clusters of debris that spin so quickly they flirt…

The Sun’s most violent flares are turning out to be even more extreme than I, or many solar physicists, had…

Astronomers have caught a star in the act of being ripped apart by a supermassive black hole, unleashing a blast…