Archive: 08/31/2012

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

Invertebrates on the brink

One fifth of the world's invertebrates may be heading for extinction according to 'Spineless', a report published today (Friday 31st) by the Zoological Society of London (ZSL), in conjunction with IUCN and ...

Aug 31, 2012 3.7 / 5 (3) 0