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This week, astronomers announced the discovery of a planet
1.2 times the mass of Jupiter, located orbiting a star one hundred
light years away. The planet is the 100th to be found outside
of our solar system -- its position, like many others, given
away by the faint 'wobble' its gravitational field produces
in the radiation given off by its parent star.
In this hour, we'll hear the latest in the search for extra-solar
planets. Plus, we'll find out what scientists are doing to try
to find smaller, more Earth-like planets that can go unnoticed
by some planet-hunting techniques.
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Tau1 Gruis, home star of the latest extrasolar planet find.
Image courtesy Digital Sky Survey,
© 1994, AURA, Inc.
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