The mug, a travel sized device powered by a rechargeable battery, operates at three varying temperatures.
Test subjects show far lower activity in part of brain associated with morality when acting as part of a team.
Documentary reveals Nazi plans to bring extinct ancient cattle back to life as part of propaganda effort.
Best photos of the day: 13 June 2014.
Study shows penguin populations are declining as a result of climate change.
Scientist say water inside mantle rocks challenges current view of Earth's composition.
London Zoo's three lions showed their support for the England team by revealing their own football skills as the World Cup kicks off.
Metaspriggina was discovered in Canada's Rocky Mountains
Human language evolved from birdsong and other primates, experts say.
Nasa's 'faster than light' warp drive spacecraft has been tentatively code named the IXS Enterprise.
Storm from three X-Class solar flares to disrupt communication systems.
Full moon to appear on Friday 13th in June for first time in almost 100 years.
Best photos of the day: 12 June 2014.
Karlsruhe Institute of Technology (KIT) is working on technology to make objects disappear before the naked eyes.
Fossils show Tibetan Plateau was "cradle of evolution" for cold-adapted mammals.
SeaOrbiter will cost $48 million and will be capable of exploring the ocean and abyss indefinitely.
Republican lawmaker provides new argument for why climate change cannot be manmade.
Sea reptiles from the age of the dinosaurs had paddle-like limbs to help them swim.
Best photos of the day: 11 June 2014.
Nasa's Solar Dynamics Observatory captures two huge solar flares bursting from the sun.
Mystery of why dark side of the moon has no face solved by scientists.
The Nasa flying saucer is aimed at inspiring future human expeditions to Mars.
Spanish scientists say alpha male Pyros is threatening survival of species in Pyrenees.
Best photos of the day: 10 June 2014
Radar shows West Antarctic glacier is melting from both ocean and geothermal sources.
Scientists claim to have found echoes predating Earth's collision with Theia.
Tenby Harbour Beach in Wales has been named the best beach in Europe.
Human faces evolved to minimise injury from punches during fights.
Best photos of the day: 9 June 2014.
Smithsonian documentary Hunt for the Super Predator looks at what killed huge shark.