Stormy Uranus takes astronomers by surprise
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Uranus may not be âthe most boring planetâ in the solar system after all - new images suggest the outer planet experiences weird seasonal weather patterns.
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Detailed observations from the first comet samples returned to Earth are debunking some of science's long-held beliefs on how the icy, celestial bodies form.
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British researchers detect water in atmosphere of planet that circles star far beyond our solar system.
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Saturn's majestic ring system, visible through backyard telescopes, just got a little more crowded with the discovery of a faint, new ring encircling the giant planet, scientists said Tuesday.
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Astronomers capture images of the rings of Uranus as they appear edge-on as viewed from Earth.
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A discovery now has some astronomers entertaining visions of icy volcanoes roiling on some of the tiny worlds circling beyond Neptune, at least at one time.
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By Sandi Doughton, Seattle Times  Dec. 15--University of Washington astronomer Don Brownlee expected surprises from the pinch of comet dust collected by the Stardust spacecraft.   But he didn't foresee such a shake-up.
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A large planet-like object out in the realm of Pluto shows signs of either a relatively recent collision or perhaps volcanic activity, astronomers said today.
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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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Four hundred years ago, sky watchers, including the famous astronomer Johannes Kepler, best known as the discoverer of the laws of planetary motion, were startled by the sudden appearance of a "new star" in the western sky, rivaling the brilliance of the nearby planets.
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Astronomers spot a space oddity in Earth's neighbourhood: a dead star with unusual characteristics.
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It may take much longer than scientists have thought for violent turbulence to turn grains of space dust into new planets. A NASA telescope recently discovered evidence that
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A supernova spotted by the Danish astronomer Tycho Brahe more than four centuries ago that changed the course of human knowledge has just yielded a further discovery - the apparent discovery of the companion star that triggered the great event.
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An explosion on a distant comet, Holmes, is studied by UK astronomers using the Isaac Newton Telescope.
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Teams of international scientists have  used observations from NASA's Swift satellite and other  telescopes to witness the evolution of a cosmic blast into a  stellar explosion or supernova.
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The first precise measurement of a failed star known as a brown dwarf finds the object is much more massive than theorists expected. The result challenges what astronomers&nbsp;assumed about these strange things, which straddle the mass range between huge planets and normal stars.
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For many astronomers the Kuiper Belt has become an exciting spot for innovative research and has changed how they view the solar system.