Mars mission simulation reveals serious sleep problems

The data's in from the simulated Mars mission in which six trained astronauts were shut up for a year and a half. And it seems that long-term missions of this kind do indeed lead to problems for the crew.

Native Americans traced to Siberian mountains

Native Americans can trace their origins to a remote mountainous region of Siberia, new genetic research has shown.

Robot builds itself with foam

Roboticists at the University of Pennsylvania’s Modlab have built a robot that can build and repair other robots - and even itself - using modular parts and spray-on foam.

'Blast badge' allows instant diagnosis of exposure to explosive shock

A new cap badge could allow immediate diagnosis of the severity of exposure to explosive blasts on the battlefield.

'Climategate' scientist cleared of misconduct

Professor Michael Mann, the US scientist accused of massaging climate change figures has been cleared by his university.