How to know the distance of the black hole merger?
1709
How were the solar masses and distance of the GW150914 merger event calculated from the signal?
4279
Can colliding gravitational waves create a black hole?
42940
How do I calculate the distance of an object in a photo?
48450
Best distance measure to use
64252
Are the LIGO observations proof of a black hole merger, and what happened to the black holes?
91581
Is there a way to split a black hole?
10556
Can the Hubble constant be measured locally?
29708
WGS point to WGS line segment (great circle) distance
143235
Twin Paradox, calculating spacetime intervals from both perspectives
66972
Is there any way to measure the one-way speed of light?
66232
At what moment will matter falling into a black hole affect its size?
90513
What is the "Event Horizon" of a black hole
89311
$r$ and $R$ difference with Schwarzschild metric
80645
Time for two relativistic objects to meet
141546
Time and distance in a photon's frame of reference
71342
Physical interpretation of the Reissner-Nordstrom metric
25757
Has the black hole information loss paradox been settled?