Double trouble

You'd Prefer an Astronaut

19/11/2010 9:00AM

Episode Synopsis "Double trouble"

Kepler recently discovered not one but two transiting planets orbiting the same star. Now, this isn't that surprising - many stars with multiple planets have long been identified (e.g. our Sun and Solar System), and since transiting planets are a result of favorable geometry (the planets happen to pass between us and their central star) and most planets orbit a star in the plane on the sky (one important reason why Pluto is no longer considering a planet by most astronomers). one would even expect this to happen. It is cool, never the less. about it here and here and here and here and here, with an audio report (courtesy of NASA) here.

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