Could Echoes from Colliding Black Holes Prove Stephen Hawking’s Greatest Prediction?
Subtle signals from black hole mergers might confirm the existence of “Hawking radiation”—and gravitational-wave detectors may have already seen them
Astronomers Report a Monstrous Eruption from a Supermagnetic Star
In a fraction of a second, the outburst released as much energy as our sun produces in 100,000 years
Hunt for Alien Life Tops Next-Gen Wish List for U.S. Astronomy
A major report outlining the highest priorities and recommendations for U.S. astronomy has finally been released, revealing the shape of things to come
Could Gravity’s Quantum Origins Explain Dark Energy?
A potentially transformative theoretical study links a new model of quantum gravity with the universe’s bizarrely accelerating rate of expansion
AI Generates Hypotheses Human Scientists Have Not Thought Of
Machine-learning algorithms can guide humans toward new experiments and theories
A Mysterious ‘Alien Beacon’ Was Actually a False Alarm
The radio signal seemed to originate from the star Proxima Centauri and provided a helpful drill for future searches
Can We Gauge Quantum Time of Flight?
Measuring the time it takes particles to travel between two points may be the best test yet for Bohmian mechanics
Was Our Universe Created in a Laboratory?
Developing quantum-gravity technologies may elevate us to a “class A” civilization, capable of creating a baby universe
FAST, the World’s Largest Radio Telescope, Zooms in on a Furious Cosmic Source
China’s Five-Hundred-Meter Aperture Spherical Radio Telescope has detected more than 1,600 fast radio bursts from a single enigmatic system
New Type of Dark Energy Could Solve Universe Expansion Mystery
Hints of a previously unknown, primordial form of the substance could explain why the cosmos now seems to be expanding faster than theory predicts
This Supernova Will Make a Ghostly Reappearance in 2037
A chance celestial alignment is allowing astronomers to witness a distant star’s explosive death, again and again
Singularities Can Exist Outside Black Holes—in Other Universes
Recent work has shown how “naked singularities” might defy the cosmic censorship conjecture