News tagged with red giants
Can Earth-sized planets survive their star's expansion?
Two Earth-sized planets have been discovered circling a dying star that has passed the red giant stage. Because of their close orbits, the planets must have been engulfed by their star while it swelled up ...
Dec 21, 2011 |
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Kepler spacecraft gives astronomers a look inside red giant stars
NASA's Kepler Mission is giving astronomers such a clear view of changes in star brightness that they can now see clues about what's happening inside red giant stars.
Mar 30, 2011 |
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A New Method of Estimating Stellar Distances
(PhysOrg.com) -- The star Chi Cygni is located about 550 light-years away, in the direction of the constellation of Cygnus the Swan. It is a notable star because, unlike the sun which still burns hydrogen ...
Dec 21, 2009 |
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Astronomers spot cosmic dust fountain
(PhysOrg.com) -- Space dust annoys astronomers just as much as the household variety when it interferes with their observations of distant stars. And yet space dust also poses one of the great mysteries of ...
Feb 05, 2009 |
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Astronomers discover Kepler's trinity
NASA's revolutionary Kepler satellite has discovered a unique triply eclipsing triple star, reports an international team of astronomers.
Apr 08, 2011 |
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Astronomers detect echoes from the depth of a red giant star
(PhysOrg.com) -- Today an international team of astronomers reports the discovery of waves inside a star that travel so deep that they reach the core. The discovery was published in the renowned journal Science, and wa ...
Mar 18, 2011 |
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Kepler spacecraft takes pulse of distant stars
(PhysOrg.com) -- An international cadre of scientists that used data from NASA's Kepler spacecraft announced Tuesday the detection of stellar oscillations, or "starquakes," that yield new insights about the size, age and ...
Oct 26, 2010 |
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Britain's biggest animal 'killed for antlers'
A giant red stag thought to be Britain's biggest wild animal was killed for its antlers, according to reports on Tuesday.
Oct 26, 2010 |
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CH Cyg: A Close-up View of Codependent Stellar Living
(PhysOrg.com) -- This image shows the symbiotic system known as CH Cyg, located only about 800 light years from Earth. The large image shows an optical view of CH Cyg, using the Digitized Sky Survey, and the ...
Jun 09, 2010 |
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Diagnosis murder: Study shows supermassive black holes may strip galaxies of life
(PhysOrg.com) -- Black holes have long been beloved of science fiction writers for their destructive capabilities and peculiar ability to warp space time. Now a study led by researchers from The University ...
Apr 16, 2010 |
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First detailed look at young dusty discs around ageing stars
(PhysOrg.com) -- Astronomers from the University of Manchester's Jodrell Bank Centre for Astrophysics and the Observatoire de la Cote d’Azur in France have used the Very Large Telescope (VLT) in Chile to discover ...
Apr 14, 2010 |
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New tidal streams found in Andromeda reveal history of galactic mergers
(PhysOrg.com) -- An international team of astronomers has identified two new tidal streams in the Andromeda galaxy, the remnants of dwarf galaxies consumed by our large galactic neighbor. Analysis of the stars ...
Jan 07, 2010 |
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Vampires and collisions rejuvenate stars
Stars in globular clusters are generally extremely old, with ages of 12-13 billion years. However, a small fraction of them appear to be significantly younger than the average population and, because they ...
Dec 23, 2009 |
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Giant Planet Set for a Cataclysmic Show
(PhysOrg.com) -- A team of Chinese astronomers have discovered a giant planet close to the exotic binary star system QS Virginis. Although dormant now, in the future the two stars will one day erupt in a violent ...
Dec 16, 2009 |
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Brightness variations of sun-like stars: The mystery deepens
(PhysOrg.com) -- An extensive study made with ESO's Very Large Telescope deepens a long-standing mystery in the study of stars similar to the Sun. Unusual year-long variations in the brightness of about one ...
Dec 07, 2009 |
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