HST: Why do we have a Space Telescope Anyway?
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The Earth's atmosphere is not really clearTwinkle, twinkle little star,How I wonder what you are. Up above the Earth so high, Like a diamond in the sky. Twinkle, twinkle little star, How I wonder what you are. Stars do twinkle, and the reason they do is because we are looking at them through the blanket of air we call the atmosphere. Our atmosphere is full of clouds, dust and pollution. Not only that, the atmosphere is moving (wind), which causes everything we see through the atmosphere to quiver and jiggle. It all makes for a lovely song. The problem is, astronomers would prefer that the stars didn't twinkle. The twinkling inteferes with scientific observations. So how do you solve the problem? |
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