Earth’s Dust Tail Points to Alien Planets

Nov. 12 – The Spitzer Space Telescope sailed through the Earth’s dust tail recently, giving researchers a clearer idea of what it looks like. This could be beneficial to researchers searching for planets, as the dust features can sometimes be easier to see than the planets themselves.
http://science.nasa.gov/science-news/science-at-nasa/2010/12nov_dusttail/

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