How is gravitational lensing possible?
341
How is light affected by gravity?
65329
A Sphere of Black Holes
10178
How can mass bend spacetime, if there's nothing to bend?
34626
How does the propagation of gravity work for photons?
38714
Can a metric in General Relativity, Supergravity, String Theory, etc., be asymmetric?
17998
Is it possible to prove or disprove the Einstein Synchronization Convention with astronomy?
49577
Spherical / Relative Gravity
145622
How do constant aperture zoom lenses work?
145807
How can black hole increase its mass?
157284
How do wormholes work?
97246
Can gravity be interpreted as the acceleration of spacetime towards an object?
8865
Could gravity accelerate light?
130652
Interstellar -- Black hole manipulation?
115879
Why can't dark matter be black holes?
123571
A change in the gravitational law
137342
Can spacetime be non-orientable?
70671
How are gravitational waves exactly produced?