Astronomers studying the distant universe have found that small star-forming galaxies were abundant when the universe was only 800 million years old, a few percent of its present age. The results suggest that the earliest galaxies, which...
The giant molecular cloud known as W51 is one of the closest to Earth at a distance of about 17,000 light-years. Because of its relative proximity, W51 provides astronomers with an excellent opportuni..
Supernovas — the violent endings of the brief yet brilliant lives of massive stars — are among the most cataclysmic events in the cosmos. Though supernovas mark the death of stars, they also trigger t..
Juno's first close-up of Jupiter's Great Red Spot has been beamed back to planet Earth.
The smallest star yet measured has been discovered by a team of astronomers led by the University of Cambridge. With a size just a sliver larger than that of Saturn, the gravitational pull at its stel..