- #1
Starlover
- 15
- 0
When we measure distances in space -- for example, when we say a star is 20 lightyears away --
are we measuring in a straight line ("as the crow flies"), or are we including the dips and curves in spacetime (that light travels along)?
Thank you in advance?
are we measuring in a straight line ("as the crow flies"), or are we including the dips and curves in spacetime (that light travels along)?
Thank you in advance?