Astronomers Find Distant, Fluffy Planet
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WASHINGTON - The largest planet ever found orbiting another star is so puffy it would float on water, astronomers said Thursday.  The newly discovered planet, dubbed HAT-P-1, is both the largest and least dense of the nearly 200 worlds astronomers have found outside our own solar system.
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A tiny telescope has spotted a giant planet circling a faraway star, using a technique that could open a new phase of planetary discovery, scientists said on Tuesday.
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Astronomers find a strange new world that has them pondering again the essential properties of a planet.
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Astrophysicists find a star-like object with a surface temperature just one tenth that of the Sun.
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Astronomers say they have discovered the youngest planet to date circling a sun-like star, a find that will be a boon to the field of planet-formation theory.
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Comment is free: Johnjoe McFadden: The location of a newly discovered planet is good news in the search for extraterrestrials.
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US astronomers show that wherever there is room for a planet to form around a young star, it does.
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A trio of newly discovered worlds are much smaller than any other planets previously discovered outside of the solar system.
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Astronomers spot a space oddity in Earth's neighbourhood: a dead star with unusual characteristics.
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Astronomers find water in the atmosphere of a giant planet outside our Solar System.
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Astronomers have discovered a new class of planets outside the solar system that hug their parent stars so tightly they take less than a day to complete an orbit.
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A European team of astronomers has discovered a planet only 14 times more massive than the Earth. This is the smallest extra-solar planet discovered so far, and it lies at the threshold of the largest possible
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US astronomers announced Tuesday their discovery of two small planets orbiting distant stars, setting off a dispute with European astronomers over who found the new, unusually small class of planets first.
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European scientists have discovered what they describe as the smallest Earth-like planet orbiting a star outside of our Solar System.
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Astronomers discover a newborn planet in a solar system that is still in the process of forming.
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A University of Colorado study has embarked on demonstrating that new planets can be found with the help of an orbiting starshade. The method has been compared to building a giant pinhole camera in space.
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Astronomers said they were baffled about how the planet, located 450 light-years away in the constellation Lacerta, formed and why it appears puffy.