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According to New Scientist (This article and its images were originally posted on New Scientist October 3, 2018 at 04:30PM.)
t’s a moonshot. A signal has been spotted that might be the first moon detected outside our solar system, and researchers are gearing up to use the Hubble Space Telescope to confirm it.
David Kipping at Columbia University in New York and his colleagues have been using the Kepler Space Telescope to search for moons around other worlds for years, but they haven’t found any yet. “We’ve had candidates in the past and investigated them, and most of them have evaporated,” says Kipping.
The Kepler Space Telescope finds planets by watching them pass in front of their stars, causing a dip in the stars’ light. The new potential moon was found in the same way – as a moon orbits its planet, it leads to an extra fall in the starlight coming from behind.
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