Why is "Photon sphere" trending?
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Trend Analysis
- Ranking position: #
- Date: 2026-03-23 05:08:35
This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
Based on Wikipedia pageviews and search interest, this topic gained significant attention on the selected date.
Trend Insight
This topic is not currently in the ranking.
Wikipedia Overview
A photon sphere, or photon ring or photon circle, arises in a neighbourhood of the event horizon of a black hole where gravity is so strong that emitted photons will not just bend around the black hole but also return to the point where they were emitted from and consequently display boomerang-like properties. As the source emitting photons falls into the gravitational field towards the event horizon the shape of the trajectory of each boomerang photon changes, tending to a more circular form. At a critical value of the radial distance from the singularity the trajectory of a boomerang photon will take the form of an unstable circular orbit, thus forming a photon circle and hence in aggregation a photon sphere. The circular photon orbit is said to be the last photon orbit. The radius of the photon sphere, which is also the lower bound for any circular orbit, is, for a Schwarzschild black hole,
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Trending Topic Today
Search Interest Perspective
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UR: A study of photon spheres around spherically symmetric and non-rotating black holes - Astrobites
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Exotic Compact Objects Detected, Revealing Bulk-Cone Singularities And Echoes - Quantum Zeitgeist
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Mysterious black hole photon sphere explained by string theory - Innovation News Network
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Mystery About How Particles Behave Outside a Black Hole Photon Sphere Solved With String Theory - SciTechDaily
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Event Horizon Telescope observations exclude compact objects in baseline mimetic gravity - Nature
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2013 July 2 - Circling a Black Hole at its Photon Sphere - NASA (.gov)
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Light-bending black hole mimic is first you can watch - New Scientist
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Earth's ocean eddies like black holes - 9News
Why This Topic Is Trending
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Search Interest & Related Topics
Search interest data over the past 12 months indicates that this topic periodically attracts global attention. Sudden spikes often correlate with major news events, public statements, or geopolitical developments.