- #26
Nereid
Staff Emeritus
Science Advisor
Gold Member
- 3,367
- 2
To reinforce something which SelfAdjoint said, there are solid observations of the extent to which the Sun's mass 'bends' spacetime, and they match the predictions of GR to at least 1 part in 20,000.Originally posted by Canute
Does this mean that orbital motion is not relative?
Perhaps your question could be restated as "are there preferred frames of reference in GR?"