posted on Feb, 5 2015 @ 02:15 PM
I've always had this question: If two objects are traveling *towards* each other at the speed of light, wouldn't their speed relative to each other
be 2x the speed of light?
Conversely, if two objects are traveling next to each other at the "speed of light" then wouldn't their relative speed be zero?
Another, if I leave Earth at the speed of light traveling toward a distant star, which is moving away from the Earth at half the speed of light, what
is my speed?
Last one, if traveled away from the Sun at the speed of light, would it "disappear" because no light photons from the Sun could reach me?
So I guess the term "speed of light" is what gives me trouble - speed relative to what? It would have to be relative to some fixed object,
edit on 5-2-2015 by LanceCorvette because: To add "Another ..."
edit on 5-2-2015 by LanceCorvette because: add "last