Spellbinding Planets
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You won't want to miss this:  Venus and Jupiter, the two brightest planets, will be beautifully close together just before sunrise on Thursday, Nov. 4th, and Friday, Nov. 5th.
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Astronomers find water in the atmosphere of a giant planet outside our Solar System.
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Two old stars appear to be gearing up for a second generation of planet formation, a phenomenon astronomers say they have never seen before.
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New images of the planet Uranus reveal more diversity in cloud features than ever seen before.
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The business of building planets is messier and more chaotic than scientists realized, according to new observations from NASA&#39;s Spitzer Space Telescope.
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Two Neptune-sized planets have been discovered circling stars beyond our Solar System, US astronomers reported on Tuesday. The discoveries, which come less than a week after a similar announcement by European
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A team of astronomers announced last week the discovery of some of the smallest planets yet detected beyond our solar system. The two newly discovered planets represent a new class of extrasolar planets, and
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Ice particles are key players in the ever-changing panorama at Saturn, according to a new study led by a University of Colorado at Boulder professor using an instrument on the Cassini-Huygens spacecraft now at the ringed planet.
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Planet-building is dusty work, and now two space telescopes have captured images of cosmic construction materials: disks of dust circling stars about the same size as our sun.
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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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NASA's infrared eyes are probing the beginnings of both stars and planets.  In two separate observations, the Spitzer Space Telescope has uncovered the warm glow from a possible stellar infant and an icy disk where planets may one-day form.
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The collisions that spawn planets are bigger and take place over longer periods of time than previously thought, say astronomers who studied nearly 300 stars with NASA&#39;s Spitzer Space Telescope.
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HONOLULU-Astronomers have discovered 28 new planets outside of our solar system, increasing to 236 the number of known exoplanets, revealing that planets can exist around a broad spectrum of stellar types-from tiny, dim stars to giants.
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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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Planets are built over a long period of massive collisions between rocky bodies as big as mountain ranges, astronomers announced today. New observations from NASA's Spitzer Space Telescope reveal surprisingly large dust clouds around several stars.
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Astronomers  have spotted a planet that has survived the massive ballooning of its parent  star, providing the first optimistic evidence for the long-term survival of  Earth.
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MAUNA KEA, Hawaii -- The sharpest image ever taken of a dust disk around another star has revealed structures in the disk which are signs of unseen planets.     Dr...