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About BlackHole.org

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BlackHole.org is an independent scholarly resource created and maintained by Jie Ren (renphysics@blackhole.org). It serves graduate students and researchers studying general relativity, black holes, and gravity.

The Library develops the subjects in depth; Learn offers study paths; Black Holes connects physical systems; Research examines current questions; and Reference supports quick lookup.

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See Scientific Standards and Verification, Privacy and Site Policies, and Editions and Corrections for how the resource is maintained.

BlackHole.org is not affiliated with the Simulating eXtreme Spacetimes (SXS) Collaboration or black-holes.org.