Andylee1 Posted February 28, 2016 Posted February 28, 2016 how do scientist accurately record data when the data they are recording from satellites and telescopes are showing us history and not the exact events happening now?
Endy0816 Posted February 28, 2016 Posted February 28, 2016 No real difference. Light speed limit applies to your lamp as much as it does distant stars.
Strange Posted February 28, 2016 Posted February 28, 2016 When it matters (e.g. GPS positioning) you take the delay into account. When it doesn't matter (most examples of looking at stars or planets) you ignore it.
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