Scientists have long thought that planets had to orbit very close to small and dim red dwarf stars in order to be warm enough for life. New research challenges that assumption.
Astronomy
Feb 24, 2012
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The discovery of the three smallest planets yet orbiting a distant star, which was announced today at the annual meeting of the American Astronomical Society, has an unusual connection to Barnard's star, one of the Sun's ...
Astronomy
Jan 11, 2012
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t has been known for several years that stars hosting planets are generally more rich in elements heavier than hydrogen and helium, known in astronomy as “metals”. These heavy elements help to form the cores of ...
Astronomy
Aug 2, 2011
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NASA's revolutionary Kepler satellite has discovered a unique triply eclipsing triple star, reports an international team of astronomers.
Astronomy
Apr 8, 2011
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(PhysOrg.com) -- A deep survey of more than 200,000 stars in our Milky Way galaxy has unveiled the sometimes petulant behavior of tiny red dwarf stars. These stars, which are smaller than the Sun, can unleash powerful eruptions ...
Astronomy
Jan 10, 2011
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Astronomers at The University of Warwick and the University of Sheffield have helped discover an unusual star system which looks like, and may even once have behaved like, a game of snooker.
Astronomy
Nov 9, 2010
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(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 inset shows a ...
Astronomy
Jun 9, 2010
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(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 discs ...
Astronomy
Apr 14, 2010
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(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 in Andromeda's ...
Astronomy
Jan 7, 2010
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(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 nova outburst. ...
Astronomy
Dec 16, 2009
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