Scientists discover 'first' creature to move from water to land almost 400 million years ago.
Element has a remarkable array of uses, including in space research, car parts, mobile phones, and military drones.
Virtual reality diagnosis using a new mathematical model linked to balance can detect first signs of these disorders, it is claimed.
Threat to Salekhard and Anadyr could come even sooner - by the mid-2020s - as thaw of frozen ground is forecast to have 'devastating' impact.
World's first multi-use metal-vapour laser can be used to revolutionise operations, create more efficient gadgets, and sense the atmosphere.
One early visitor: a fireball streaking across the sky and splashing into Lake Baikal.
New details emerge about 1928 odyssey that changed a dictator.
As closed city prepares for construction of new reactor, one scientist calls for an inquiry to address environmental concerns of past 50 years.