(Phys.org) —Stars come in a tremendous size range, from many tens of times bigger than the Sun to a tiny fraction of its size. But the answer to just how small an astronomical body can be, and still be a star, has never ...
Astronomy
Dec 10, 2013
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(Phys.org) —A team of astronomers led by Dr David Pinfield at the University of Hertfordshire have discovered two of the oldest brown dwarfs in the Galaxy. These ancient objects are moving at speeds of 100-200 kilometres ...
Astronomy
Nov 20, 2013
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(Phys.org) —An international team of astronomers has discovered an exotic young planet that is not orbiting a star. This free-floating planet, dubbed PSO J318.5-22, is just 80 light-years away from Earth and has a mass ...
Astronomy
Oct 9, 2013
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(Phys.org) —Astronomers are constantly on the hunt for ever-colder star-like bodies, and two years ago a new class of such objects was discovered by researchers using NASA's WISE space telescope. However, until now no one ...
Astronomy
Sep 5, 2013
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(Phys.org) —Astronomers trying to understand how the Sun and Earth formed, and why they have their characteristic properties, have made progress on a closely related problem: the nature of the lowest mass stars, so-called ...
Astronomy
Sep 2, 2013
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(Phys.org) —A pair of newly discovered stars is the third-closest star system to the Sun, according to a paper that will be published in Astrophysical Journal Letters. The duo is the closest star system discovered since ...
Astronomy
Mar 11, 2013
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(Phys.org)—Astronomers using NASA's Spitzer and Hubble space telescopes have probed the stormy atmosphere of a brown dwarf, creating the most detailed "weather map" yet for this class of cool, star-like orbs. The forecast ...
Astronomy
Jan 8, 2013
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(Phys.org)—Astronomers find planets in strange places and wonder if they might support life. One such place would be in orbit around a white or brown dwarf. While neither is a star like the sun, both glow and so could be ...
Astronomy
Nov 20, 2012
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(Phys.org)—A planet that is not orbiting a star, effectively making it homeless, has been discovered by a team of University of Montreal (UdeM) researchers working with European colleagues and data provided by the Canada-France-Hawaii ...
Astronomy
Nov 14, 2012
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(Phys.org)—Astronomers using data from NASA's Wide-field Infrared Survey Explorer, or WISE, have discovered dust in an unusual place—just outside the reach of a binary star system with a short 3-hour orbit. The binary ...
Astronomy
Nov 14, 2012
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