Earth-Like Planets May Be Common in Known Planetary Systems
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More than one-third of the giant planet systems recently detected outside our solar system may harbor Earth-like planets covered in deep global oceans that offer abundant potential for life, according to a new study by scientists associated with NASA's Astrobiology Institute.
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A group of European-led astronomers has made a photograph of what appears to be a planet orbiting another star. If so, it would be the first confirmed picture of a world beyond our solar system.
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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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A group of European-led    astronomers has made a photograph of what appears to be a planet orbiting another    star. If so, it would be the first confirmed picture of a world beyond our solar    system.
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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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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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NASA's Spitzer Space Telescope has spotted a dusty disc of material around a very small "failed star" called a brown dwarf, raising the possibility that there may be miniature solar systems in which planets orbit objects not much larger than planets, scientists said Monday.
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Rocky planets with conditions suitable for life may be more common than previously thought, a study finds
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Lots of places to escape to Would-be galactic colonists got a boost this week when a paper in the journal Science suggested that Earth-like planets might be more common than previously thought.â¦
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A new class of planets has been  found orbiting stars besides our sun, in a possible giant leap  forward in the search for Earth-like planets that might harbor  life, scientists said on Tuesday.
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Astronomers have discovered four new planets in a week's time, an exciting end-of-summer flurry that signals a sharper era in the hunt for new worlds.    While none of these new bodies would be mistaken as Earth's twin, some appear to be noticeably smaller and more solid - more like Earth and Mars - than the gargantuan, gaseous giants identified before...
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A âsuper Earthâ planet has been discovered in a star system 50 light years away. It is the smallest world to be found outside our Solar System, and probably the first rocky planet found so far, astronomers revealed on Wednesday.
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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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The universe looked a little more familiar and friendlier. The roll call of planets beyond the solar system swelled significantly with the announcement of a trio of newly-discovered worlds much smaller than any previously discovered around other stars.
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For the next few weeks sky-watchers can spot Mercury, Venus, Mars, Jupiter, and Saturn in the same nighttime sky. The planets won't be visible together to the naked eye again until 2016.
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These are heady times for planet hunters. During the past decade, astronomers have uncovered at least 125 confirmed planets in 98 solar systems in our corner of the Milky Way.
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Researchers have discovered two planets in a solar system 5,000 light-years away that appears to be structured in some important ways like our own.