TIL I learned about gravastars (aka a gravitational vacuum star), theoretical objects related to black holes. Both are massive & ...

Travel to the event horizon in this amazing new black hole visualization from NASA's Goddard Space Flight Center. Credit: ...

What really happens inside a black hole? From extreme spacetime curvature to theoretical wormholes and white holes, this video explores the terrifying and fascinating physics of the universe’s most ...

"Our findings pave the way for rigorous examinations of black holes and the exploration of new physics in gravity." ...

Famed physicist Albert Einstein first theorized that an observer should see a ring of light surrounding the black hole, ...