horizon
Tag archives for horizon
Yes, we really, REALLY need Dark Matter!
Posted by Ethan on December 7, 2012
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“If you wish to make an apple pie from scratch, you must first invent the Universe.” -Carl Sagan The Universe is a lot like an extremely intricate cake. We view it today as a snapshot in time, now that it’s complete. We can view the whole thing from one point of view, determined by where…
Q & A: Why is the Microwave Background so Uniform?
Posted by Ethan on February 26, 2008 startswithabang.com reader Andy has a great follow-up to his question on the Age & Size of the Universe, and asks: why does the CBR “appear” to come from a light sphere that “appears” NOW to be larger than the universe WAS when it first set off in a straight line on its 13.4 billion year…
