How Far Can YOU See?
How far can you see with that thing? I hear that one a lot at star parties. It’s a sort of ambiguous question to an astronomer; distance varies with the scale of the structures in our universe...
View Article29.05.11: Hubble: New Views of a Historic Star.
Thar be (a) Var! (Credit: NASA/Space Telescope Inst). Its hard to imagine that less than a century ago, our home galaxy was thought to be the extent of the universe. That all changed the moment that...
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