Twice every 100 years or so, Venus crosses the face of the Sun. It's like an eclipse, except Venus will look like a pea in a yellow saucer. But the transit has a storied history ? it showed for the first time that other planets have an atmosphere, and also allowed astronomers to calculate the scale of the solar system. This year offers yet another possibility ? the transit will help astronomers figure out which planets orbiting other suns in the universe have atmospheres, and maybe life.
richard cordray shannon de lima joe torre west virginia university michele bachmann jessica biel tim howard
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