Can spacetime itself rotate along a body, like a black hole? Would it move like a wave?
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Check Kerr Metric, FLRW metric and Gravitational Waves – Álvaro Rodrigo Jul 17 '23 at 00:32
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Related: https://physics.stackexchange.com/questions/362097/can-empty-space-rotate-without-frame-dragging – safesphere Jul 17 '23 at 02:45
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Also related: https://physics.stackexchange.com/questions/423536/experimental-proof-of-space-expansion – safesphere Jul 17 '23 at 02:50
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5Movement is a change in position with respect to time. Spacetime includes time. What other time parameter could spacetime move with respect to? (Do you mean, can space move?) – Sten Jul 17 '23 at 06:52