Most of what we know about the universe, from its age to its size to how it began in a Big Bang, has been found out through telescopes. But how far out into space and back into time is it possible to see?
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First published on Thu, 12 Apr 2007 as The Cosmos: A Beginner's Guide - Seeing the universe. To find out more visit The Open University's Openlearn website. Copyright 2007
First published on Thu, 12 Apr 2007 as The Cosmos: A Beginner's Guide - Seeing the universe. To find out more visit The Open University's Openlearn website. Copyright 2007