Swiss pilot Andre Borschberg begins his bid to cross the Pacific, from China to Hawaii, in the zero-fuel Solar Impulse aeroplane.
A powerful undersea earthquake south of Japan shakes buildings in the capital Tokyo and is felt across the country.
Scientists are using drones to monitor gray whales of the coast of California.
The Great Barrier Reef should not go on the World Heritage danger list, according to a United Nations draft report.
Engineers produce a "shape memory alloy" that can pop back into shape more than 10 million times, shattering previous records for this type of material.
A series of images captures two vast blobs of plasma, shot out by a black hole, cannoning into each other in a nearly light-speed cosmic collision.
A human skull from a deep cave in northern Spain shows evidence of a lethal violent attack 430,000 years ago, a study shows.
A new species of ancient human has been unearthed in the Afar region of Ethiopia, scientists report.
Nearly three-quarters of fresh shop-bought chickens test positive for food poisoning bug campylobacter in year-long study.
Researchers develop a system that adapts to damage in less than a minute, paving the way for robots in the home.
A study of three mice that spent 91 days on the International Space Station finds abnormalities in their skin.
A study tests the idea that large crowds can be counted using data from mobile phone usage and Twitter.
A court in India's Rajasthan state rejects a plea to release a tiger who has been branded a killer and caged.
The cast and creators of TV comedy The Big Bang Theory create a scholarship fund for low-income science students.
Tourism operators in earthquake-hit Nepal seek guidance from international experts on which areas can be declared safe for trekking and mountaineering.
Nobel-winning structural biologist Venki Ramakrishnan is elected to become the next president of the Royal Society.
A new iPad app is asking users to "tag" tigers in images gathered from the internet, to help researchers with counting and tracking the animals.
Europe will not be mounting a sample-return mission to an asteroid, having rejected the MarcoPolo concept at the third time of asking.
The UK government’s claim that the country leads the world in cuts of carbon emissions is challenged by researchers at Leeds University.
The UK government is to establish the largest marine reserve in the world around the Pitcairn Islands in the Pacific.
Mercury pollution has risen nearly 50-fold in the feathers of a gull that feeds and breeds in the Arctic, say scientists.
Negotiations are opening on a £1bn tidal lagoon scheme in Swansea as the chancellor gives his Budget speech in the House of Commons.
Solar Impulse, a plane powered entirely by the sun, takes off on the final and most difficult leg of its mission to fly a solar plane around the world from China to Hawaii.
A new species of ancient human has been unearthed in the deserts of Ethiopia, after 3,500,000 years.
The BBC's John Maguire joins a scientific expedition that is studying the Common Dolphin population off the west coast of Scotland, and trying to find out why, until recently, it was quite a rare sight.
The BBC's Andrew Bomford finds out where the millions of tonnes of earth go that have been excavated during the cross rail project.
The planned flight of the sun powered plane, Solar Impulse 2, has been postponed.
Professor David Siveter from the University of Leicester explains how a 425 million year-old parasite was frozen in time at a site in Herefordshire.
Dogs may have been domesticated much earlier than previously though, Swedish researchers suggest.
The Inuit people of Greenland are challenging an EU ban on seal hunting and the trade in seal meat and skins, arguing it has "crashed" the Inuits' economy.