| Lyrics: | When you look into a night sky you see the stars far away,
you're seeing them because of the
light which travels from
them to you. Now it takes time for light to travel here, so
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what you are doing is seeing the stars as they were in the
past, the amount of time it has
taken for the light to reach
us and the further and further away those stars are, the
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further back in time you are looking. Now you are seeing a
star that is say six thousand
years ago, imagine somebody
on that star looking at us, they would be seeing us as we
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were six thousand years ago. Which of those two is now?
So space and time are linked
together. As we are looking
across space, we are looking back in time.
-Prof.
Frank Close |
