Space Telescope
If the hubble space telescope is seeing the early universe?
Forgive my ignorance at this.
If the hubble space telescope is seeing the early universe from billions of light years away, is our galaxy traveling at almost the speed of light away from the point where big bang occurred?
for example:
an explosion or a black hole was detected by hubble from around 14 billion light years away and our galaxy was already at this point(here). So we are seeing what is happening at 14 billion years ago at yet our galaxy must have came from that part where the explosion begins..
Sorry bout that, can’t explain further.
You’re mistaken in that our galaxy is traveling at almost the speed of light away from the point where the big bang occurred. The big bang created space itself, so the big bang occurred everywhere; it’s just that “everywhere” is expanding, and was once very small compared to today. The dopler shift of the cosmic microwave background shows we are only moving 0.2% the speed of light with respect to the original big bang.
So any direction we look, we are still looking at the big bang; just different areas of it in earlier eras, since looking through space also means looking through time. But 14 billion years ago the universe was also very small; so for very large units, “light years” implies less actual distance than it does for today’s universe.
Hubble Space Telescope – Chapter 1
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