A new simulation could help solve one of astronomy’s longstanding mysteries—how supermassive black holes formed so rapidly—along with a new one: What are the James Webb Space Telescope’s (JWST) ...

2025 was an exciting year for astronomical discoveries. Scientists got the best evidence yet for past life on Mars, discovered an interstellar comet zooming through our solar system, found clues of ...

Nov. 4 (UPI) --Scientists have discovered a supermassive black hole flare, the largest seen in the universe, and it may be making a meal of an enormous star. The flare is 30 times more powerful than ...

Scientists flew the XL-Calibur telescope on a high-altitude balloon to measure polarized X-rays from Cygnus X-1. These measurements reveal details about the chaotic, superheated material swirling ...

In my January 23, 2026, “The Universe” column, I wrote about some of the biggest bangs the universe has to offer: exploding stars, hiccupping magnetars, stellar disruptions and colliding black holes.

We go in depth on black holes: the strangest objects in the universe! Black holes are not just the strangest objects in the universe, they're the sharpest test we have of how reality actually works.

Space-time is being driven apart. Every second that passes, the universe expands faster and faster. What is propelling this dramatic acceleration is an enigma, though – one scientists have known about ...