Black holes are encircled by thin rings of light. This physicist wants to see one

Unveiling the Mystery of Black Holes

Theoretical physicist Alex Lupsasca is on a mission to capture an image of a "photon ring," a thin ring of light believed to surround every black hole.

According to physicists, black holes are regions of the universe where spacetime is severely warped, making it impossible for anything to escape. However, particles of light, or photons, can graze the edge of the black hole without falling in, orbiting it one or more times before breaking away.

This phenomenon creates a tendril-thin halo of light, known as a photon ring, which has the potential to reveal secrets from the black hole's edge. An image of this ring could also test Einstein's general theory of relativity.

A mysterious ring of light is thought to surround every black hole.

Alex Lupsasca is advocating for a space telescope to glimpse this elusive photon ring, which could provide groundbreaking insights into the nature of black holes.

Author's summary: Physicist Alex Lupsasca aims to capture the photon ring surrounding black holes.

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Science News Science News — 2025-10-29

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