News tagged with elemental composition

A cluster with a secret

(Phys.org)—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 ...

Sep 05, 2012 5 / 5 (3) 21 | 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