Comets, Asteroids and Planets around a Nearby Star
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A nearby star thought to harbor comets and asteroids now appears to be home to planets, too. The presumed worlds are smaller than Jupiter and could be as tiny as Pluto, new observations suggest.
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European scientists have found a planet circling a distant star that could be home to life. The planet, the first detected so far that is enough like Earth for life to develop, orbits a star called mu Arae in the southern constellation Altar.
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Today's close passage of the relatively large asteroid, Toutatis, has presented astronomers with a new ruler to measure solar system distances. By using two telescopes separated by hundreds of miles, the classic parallax method validates the asteroid's orbital path...
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WASHINGTON - Astronomers have used a network of small telescopes to discover a planet circling a far-off star. &quot;This discovery demonstrates that even humble telescopes can make huge contributions to planet
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The surface of one of the brightest stars in the night sky is imaged by scientists.
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Astronomers describe a planet orbiting a star near the end of its life - a vision, perhaps, of Earth's future.
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Observing the image of a faint object that lies close to a star is a demanding task as the object is generally hidden in the glare of the star. Characterising this object, by taking spectra, is an even harder challenge.
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New observations of dust around young stars suggest collisions of large asteroid-like objects and fledgling planets are frequent. But that doesn&#39;t likely stop the formation
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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.
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A comet discovered earlier this year has now moved close enough to be visible without binoculars or telescopes by experienced observers under dark skies. It is expected to put on a modest show this month and into January.
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The Hubble Space Telescope has imaged two of the largest known asteroids, revealing craters and other features that will soon be the targets of close-up observations by NASA&#39;s Dawn spacecraft.
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A group of European-led    astronomers has made a photograph of what appears to be a planet orbiting another    star. If so, it would be the first confirmed picture of a world beyond our 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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U.S. scientists using NASA's Spitzer Space Telescope have discovered a small brown dwarf star, 50 times the mass of Jupiter.  The star is orbiting with a planet around a sun-like star in an arrangement astronomers say has never been observed before.
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A new extra-solar planet has been identified orbiting a star 500 light years from our solar system. The discovery was made by a team using a four-inch diameter telescope to make their observations - a size
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Two separate teams of astronomers find Neptune-size planets beyond our solar system. Earth-like planets are just around the corner, they say. By Amit Asaravala.
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In this artist&#39;s concept released by NASA, a ring of dusty debris is seen around a star. NASA&#39;s Spitzer Space Telescope found rings of dust around planet-bearing stars, an important confirmation of theories