Murray Gell-Mann, Nobel-winning physicist who developed quark idea, dies at 89washingtonpost.com 2erkose7ydiscuss
Nasa Kelly twins study shows harsh effects of space flight and a brutal returnwashingtonpost.com 2erkose7ydiscuss
In the balance: scientists vote on first change to kilogram in a centurytheguardian.com 3erkose7ydiscuss
Scientists make tiny 3D glasses for insects to understand how they see the worldindependent.co.uk 1erkose8ydiscuss