Observing Black Holes' Photon Rings
Theoretical physicist Alex Lupsasca aims to capture an image of a 'photon ring' surrounding a black hole using a space telescope.
A photon ring is a thin ring of light that is believed to encircle every black hole, holding secrets from the edge of these cosmic phenomena.
- Black holes are regions of spacetime where gravity is so strong that nothing can escape.
- Photons can orbit the black hole one or more times before breaking away, forming the photon ring.
A photon ring could test Einstein’s general theory of relativity.
Alex Lupsasca's pursuit of imaging a photon ring could lead to new discoveries about black holes and the universe.
Author's summary: Physicist Alex Lupsasca seeks to image a black hole's photon ring.
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