Black Holes

The laws of physics allow time travel. So why haven’t people become chronological hoppers?

Using machine learning, researchers have now created a much sharper portrait of the supermassive black hole at the center of the galaxy M87

Scientists may have spotted two pairs of merging dwarf galaxies, each pair with a duo of soon-to-collide black holes

A lab-made black hole is beyond current technology but could be possible one day

The way we teach quantum theory conveys a spookiness that isn’t actually there

These merging supermassive black holes are among the closest ever observed and could help unlock deeper secrets of cosmic history

The IceCube observatory has detected neutrinos from an active galaxy for the first time, revealing clues about how supermassive black holes gobble matter

A river’s “gut” revived, snake-saving social media, an intragalactic donut, and more success stories of the year

The Ads/CFT duality conjecture suggests our universe is a hologram, enabling significant discoveries in the 25 years since it was first proposed

The death of a massive star far across the universe affected lightning on our planet and could teach us about the Milky Way

These fun stories show progress from the scale of quantum effects to that of snakes and from Earth to the edge of the universe

Quantum entanglement and spacetime wormholes helped to solve a long-standing quandary