News tagged with rocky planet

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 ...

Nov 22, 2012 4.2 / 5 (6) 0 | with audio podcast

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 ...

Aug 31, 2012 4.8 / 5 (9) 10 | with audio podcast