A wormhole connects two points in spacetime Kiyoshi Takahase Segundo/Alamy
We might be able to tell the difference between a wormhole 鈥 a tunnel that connects two black holes at different locations in space-time 鈥 and a regular black hole using light that has travelled in circles around the black hole鈥檚 mouth. If wormholes exist, this could finally allow astronomers to spot them.
In 2019, astronomers used a network of radio observatories called the Event Horizon Telescope (EHT) to take the first direct image of a black hole, a distant behemoth called M87*. at Sofia University in…
