News tagged with rocky planets

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Watery, rocky planets may be common in the Milky Way

( -- An international team of astronomers have discovered compelling evidence that rocky planets are commonplace in our Galaxy. Leicester University scientist and lead researcher Dr Jay Farihi surveyed white dwarfs, ...

dateApr 13, 2010 in Astronomy
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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 water flowing ...

dateAug 26, 2011 in Astronomy
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Spitzer telescope witnesses asteroid smashup

( —NASA's Spitzer Space Telescope has spotted an eruption of dust around a young star, possibly the result of a smashup between large asteroids. This type of collision can eventually lead to the formation of planets.

dateAug 28, 2014 in Astronomy
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How old are the first planets?

To build a planet you need lots of rubble and that means lots of heavy elements – stuff more massive than atoms of hydrogen and helium. The elemental composition of the collapsing nebula that gave birth to the Sun and the ...

dateAug 31, 2012 in Astronomy
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Magnesium oxide: From Earth to super-Earth

The mantles of Earth and other rocky planets are rich in magnesium and oxygen. Due to its simplicity, the mineral magnesium oxide is a good model for studying the nature of planetary interiors. New work from a team led by ...

dateNov 22, 2012 in Earth Sciences
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Even brown dwarfs may grow rocky planets

(—Astronomers using the Atacama Large Millimeter/submillimeter Array have for the first time found that the outer region of a dusty disc encircling a brown dwarf contains millimetre-sized solid grains like those ...

dateNov 30, 2012 in Astronomy
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