How is it possible for you to be at the centre of the universe wherever you are?
10362
Does the universe have a center?
76670
Are We Living in a Simulated Universe?
77262
How is it that distortions in space can be measured as distances?
56510
Is there always an equilibrium point in space for gravity?
73038
Why does a body always rotate about its center of mass?
63346
How can the universe expand if there is gravitation?
50289
The vacuum light speed: Is it really constant, i.e., independent of location in space-time?
61618
Could the missing antimatter lie outside the observable universe?
32061
Why isn't the center of the galaxy "younger" than the outer parts?
48899
Is it possible to create matter?
76637
Why aren't particles constantly "measured" by the whole universe?
12916
How does a photon experience space and time?
10553
Does the universe have an edge/boundary/barrier? If yes, what is at the edge?
65078
How does anything move?
2790
Can space expand with unlimited speed?
144380
When the Center of Mass and Center of gravity does Not Coincide
137342
Can spacetime be non-orientable?