A New Look at How Planets Are Formed
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New infrared observations of the disks of dust and rock around young stars reveal that many planets apparently form in an environment more violent and chaotic over a longer period of
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The solid planets in our solar system are made mostly of silicates. Rock, basically. A new study shows that planets around some other stars might be made mostly of carbon instead. Deep inside such worlds, where pressures are intense, the carbon would make layers of diamonds that could be miles thick.
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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
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The universe looked a little more familiar and friendlier on Tuesday. The roll call of planets beyond the solar system swelled significantly with the announcement of a trio of newly discovered worlds much
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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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Imagine our sun snatching an alien planet from another solar system, four billion years ago. A team of scientists, including a Utah physicist, say it&#39;s a possibility based on a wild new simulation.
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The business of building planets is messier and more chaotic than scientists realized, according to new observations from NASA&#39;s Spitzer Space Telescope.
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It is the first planetary system that really looks like our own, with outer giant planets and room for smaller inner planets, astronomers say.
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When a binary star system starts to transfer mass, one of the twins may well win out, leaving its companion to occupy a strange region half way between a star and a planet. A new star-type of this sort has been found, which resembles the infrared ash of a stillborn star.
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Three new planets have been discovered in other solar systems that are the closest ever found to Earth in size, scientists announced today, marking an important step in the search for planets that could support life elsewhere in the universe.
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Recent analyses of ESAÃ¢ÂÂs Mars Express data reveal that concentrations of water vapour and methane in the atmosphere of Mars significantly overlap. This result provides important new hints to evaluate the hypothesis of present life on the Red Planet.
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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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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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For the first time, NASA scientists have observed planet-containing solar systems with disks of dust orbiting their central stars, astronomers announced Thursday.
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Astronomers have found the latest planet in another solar system â-r &quot;exoplanet&quot; â -ng telescopes no bigger than those you might find at a garage sale.
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Cold, dusty discs of debris have been clearly detected around stars in other planet-harbouring solar systems for the first time by NASA&#39;s Spitzer Space Telescope.
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Astronomers said they were baffled about how the planet, located 450 light-years away in the constellation Lacerta, formed and why it appears puffy.