general relativity

The theory of gravitation used to predict photon orbits and spacetime structure near horizons.

Articles about general relativity

Physics
Two Black Holes Photographed Together

Two Black Holes Photographed Together
Astronomers have published the first radio image that resolves two supermassive black holes orbiting each other at the heart of quasar OJ287, confirming a decades‑old prediction a…
Space
EHT Aims First Movie of M87

EHT Aims First Movie of M87
The Event Horizon Telescope is mounting a focused observing campaign in March–April 2026 to assemble the first time-resolved sequence of the supermassive black hole in Messier 87,…
Science
Wormholes: From Math to Stranger Things

Wormholes: From Math to Stranger Things
Stranger Things has pushed the wormhole back into the headlines — but what do physicists actually mean by a wormhole, how plausible are traversable tunnels through spacetime, and …
Physics
Scientists Propose a Physical Warp Drive

Scientists Propose a Physical Warp Drive
A team working with Applied Physics has published a physically grounded model for a warp drive that removes the need for exotic negative energy — a theoretical advance that reshap…