This post from Peter Cawdron was pretty interesting. Just thought I’d share.
In 2018, NASA will launch the James Webb Space Telescope, but the James Webb is no ordinary telescope. The James Webb is set to revolutionize astronomy in a way that will eclipse even the magnificent achievements of the Hubble Space Telescope.
To understand how extraordinary the James Webb is, you have to appreciate the extremes that have gone into this marvel of scientific innovation. The James Webb will orbit almost a million miles from Earth at LaGrange point 2 some 940,000 miles (1.5 million kilometers) from Earth. That’s roughly four times the distance from Earth to the Moon. In essence, the Earth-Moon system will drag the James Webb along with it as we orbit the Sun.
For the instruments on the James Webb to function properly they have to operate at 40…
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