News tagged with terrestrial planets

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Are super-Earths actually mini-Neptunes?

(Phys.org)—In the last two decades astronomers have found hundreds of planets in orbit around other stars. One type of these so-called 'exoplanets' is the super-Earths that are thought to have a high proportion of rock ...

dateFeb 04, 2013 in Astronomy
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Hidden Territory on Mercury Revealed

The MESSENGER spacecraft's third flyby of the planet Mercury has given scientists, for the first time, an almost complete view of the planet's surface and revealed some dramatic changes in Mercury's comet-like tail.

dateNov 04, 2009 in Space Exploration
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Our unlikely solar system

Recent modeling of solar mass stars with planetary systems, found that a system with four rocky planets and four gas giants in stable orbits – and only a sparsely populated outer belt of planetesimals – has only ...

dateApr 11, 2011 in Astronomy
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How water forms where Earth-like planets are born

(PhysOrg.com) -- In a study that helps to explain the origins of water on Earth, University of Michigan astronomers have found that water vapor can form spontaneously in habitable zones of solar systems, and that it develops ...

dateDec 17, 2009 in Astronomy
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Kepler team validates 41 new exoplanets with Keck I

(Phys.org) —The Kepler team today reports on four years of observations from the W. M. Keck Observatory targeting Kepler's exoplanet systems, announcing results this week at the American Astronomical Society meeting in ...

dateJan 10, 2014 in Astronomy
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