The Milky WayA scale model of our Galaxy. I find it pretty hard not to be fascinated by this sort of thing, or at least, it's left me trying to work out how we know that the temperature on Mercury is 427°C.
Showing posts with label Astronomy. Show all posts
Showing posts with label Astronomy. Show all posts
Monday, 6 April 2009
Our Galaxy
The Milky WayA scale model of our Galaxy. I find it pretty hard not to be fascinated by this sort of thing, or at least, it's left me trying to work out how we know that the temperature on Mercury is 427°C.
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