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Gravity Probe B

Testing Einstein's Universe

Special & General Relativity Questions and Answers

If I could put myself in the same point in spacetime where I was yesterday at noon, would it still be yesterday at noon?

Yes...but it would involve time travel and Nature doesn't seem to want to play that game with us.


Return to the Special & General Relativity Questions and Answers page.

All answers are provided by Dr. Sten Odenwald (Raytheon STX) for the NASA Astronomy Cafe, part of the NASA Education and Public Outreach program.