"Hot Jupiters" Could Give Rise to Earthlike Worlds, Study Says
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Gas giants that orbit close to their stars likely migrated inward, shaking up debris that could coalesce into Earthlike worlds, new computer models predict.
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In a solar system thousands of light years away, a star about half the size of our sun is being orbited by two planets that seem like smaller versions of Jupiter and Saturn, astronomers report.
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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.
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What might be the first directly visible planet orbiting a starlike body other than our sun was reported by scientists from Europe and Los Angeles on Friday.
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Two new discoveries suggest that sunlike solar systems like ours â with life-hosting planets â are more common than previously thought.
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Before spaceprobes could photograph Venus up close, the second planet from the Sun was often compared to a sister world, much like the Earth. Planetary scientist, David Grinspoon, discusses with Astrobiology Magazine how that view evolved to consider the extremes encountered on the Venusian surface.
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Two old stars appear to be generating planets long after the normal period, astronomers say.
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Scientists have gotten their best look ever at the composition of planets outside our solar system, but were more surprised by what they didn't see than what they did see.
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What might be the first known &quot;Earth-like&quot; planet orbiting a star like our own sun has been reported by European astronomers.
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Suggesting a necessary change to astronomy textbooks, astronomers announced Monday that planets form through a lengthier and more violent series of collisions
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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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Jupiter, the king of planets in the solar system, drifted tens of millions of kilometres towards the sun in its youth, a new study suggests.
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Ancient carbon-rich globules could offer a glimpse into the solar system's planet-building past and may provide clues to how life on Earth first arose.
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Planets form more violently than once thought, and many solar systems are strewn with dust from collisions like a blast that may have created Earth&#39;s moon, according to new findings.
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Astronomers have found what they say is the best evidence yet for water, or at least steam, in the atmosphere of a planet around another star.
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Astronomers describe a planet orbiting a star near the end of its life - a vision, perhaps, of Earth's future.
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Astronomers have discovered a new class of planets that take less than a day to whiz round their parent stars.