News tagged with elemental composition

Scientists discover ageing star destroys planet

(—An international team of astronomers has found evidence that a planet was destroyed by its ageing star. Led by Pennsylvania State University (Penn State) in the United States, the team showed that the missing ...

dateSep 21, 2012 in Astronomy
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A cluster with a secret

(—A new image from ESO's La Silla Observatory in Chile shows the spectacular globular star cluster Messier 4. This ball of tens of thousands of ancient stars is one of the closest and most studied of the globular ...

dateSep 05, 2012 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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