News tagged with rocky planets

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Greenhouse effect could extend habitable zone

The distant region beyond Saturn is too cold for liquid water, a necessity for life as we know it. But new research indicates that rocky planets far from their parent star could generate enough heat to keep ...

dateAug 26, 2011 in Astronomy
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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 ...

dateApr 11, 2011 in Astronomy
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Recreating Venus in the Lab

Scientists are reproducing the environment of Venus so that they can interpret observations of the planet's surface and atmosphere. Studying environmental processes on Venus can help astrobiologists better ...

dateAug 04, 2010 in Space Exploration
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Superior Super Earths

Super Earths are named for their size, but these planets - which range from about 2 to 10 Earth masses - could be superior to the Earth when it comes to sustaining life. They could also provide an answer to ...

dateNov 30, 2009 in Space Exploration
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Building Planet Earth

A new study shows how rocky planets are formed from the manic swirl of gas and dust that surround a young star, and determines what chemical building blocks are used to construct the planets. Understanding ...

dateOct 22, 2009 in Astronomy
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Kepler and the Search for Life in Our Galaxy

(PhysOrg.com) -- There are so many stars in our galaxy that even if planets with complex life (animals and plants) are rare - say one for every billion stars - there could still be dozens here in the Milky ...

dateSep 15, 2009 in Astronomy
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The greenhouse gas that saved the world

When Planet Earth was just cooling down from its fiery creation, the sun was faint and young. So faint that it should not have been able to keep the oceans of earth from freezing. But fortunately for the creation of life, ...

dateAug 18, 2009 in Earth Sciences
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