Can we use light slingshotting behind a blackhole as a cosmic mirror to our past?
99437
Using a naked black hole as a mirror?
36653
Is it possible for one black hole to pull an object out of another black hole?
47968
Thought Experiment - Poking a stick across a Black Hole's Event Horizon
23139
Am I seeing a particle orbiting a Morris-Thorne Wormhole?
92591
Could a Dyson Sphere-like object be made to encase a black hole without collapsing?
89529
Can we exit the event horizon of merging black holes?
100690
Does superluminal travel imply travelling back in time?
31674
Would Gravitational Time Dilation still apply between two gravitational sources?
64715
How is it possible that we see light from shortly after the big bang?
59629
Drawing Sphere to represent a black hole
67531
Universe being flat and why we can't see or access the space "behind" our universe plane?
16777
Is there a limit to the resolving power of a mirror telescope?
95295
Is the Universe Past-Eternal?
117952
How does light behave within a black hole's event horizon?
69908
Black hole photography
60364
Universe Expansion as an absolute time reference
136717
Will we ever be able to view the past?