Harvard physicists they can harness heat imbalance between Earth and Space to create power.
American and Russian operations on the International Space Station are to continue unaffected by Russia's invasion of Ukraine, says Nasa chief.
Best photos of the day: 5 March 2014
Hubble Telescope had spotted geysers on Europa, throwing up water plumes as high as 200 km into the air.
Asteroid's 2014 DX110 closest approach will be at 21:07 GMT (16:07 EST) and a Live webcast will be available on Slooh and the Virtual Telescope Project.
The Air Force is launching a space surveillance programme to protect its space objects in orbit.
Scientists show rare footage of life more than seven kilometres below the surface of the ocean.
London and southeast to bask in Mediterranean sunshine thanks to Atlantic jet stream
Astronomers discover almost all red dwarf stars have planets in orbit
Nepalese government introduces new measure to clean up Mount Everest.
University of Tokyo scientists have designed the first whole body radiation exposure scanner for children.
First patient in the world fitted with prosthetic heart dies after having transplant in Paris
White people's racial prejudices drop when they live with people from different races.
Best photos of the day: 4 March 2014.
Niagara Falls partially frozen for the second time this year.
Discovery of 30,000-year-old virus in Siberian ice raises possibility that other deadly strains could yet be wreak havoc on the planet
Studies on fossilised dung beetles show Europe's temperate ecosystems home to large mammals.
Further investigation of hyoid bone provides evidence Neanderthals could talk 600,000 years ago.
No one suffered serious injuries after the giant swell broke over the restaurant in Santa Barbara.
Scientists at McGill University say heat from ocean depths trapped under Antarctic ice shelf
Struggle between two reptiles took place at Lake Moondarra near Mount Isa in northern Queensland.
Researchers look at how a failed Saharan Atlantic Ocean rift zone shaped the planet.
Black hole named MQ1 has been termed as the most powerful microquasar
Officials said the wall of a tomb collapsed in the necropolis of Porta Nocera in the early hours of Sunday.
Scientists in London and Edinburgh conduct largest survey yet of link between height and IQ.
UK Environment Agency pledges 'extremely high standard of protection' for London's financial district.
300ft long Airlander hybrid airship unveiled in Bedfordshire.
Physicist says a huge solar flare could knock out electricity and satellites.
Fashion designer claims he is getting younger after years of stem cell therapy
The Book of Mormon musical's afterlife planet theory is a complete misconception of "exaltation"