Aerial photographs from the 1940s and 1950s are being used to probe the climate history of the Antarctic Peninsula.
Any moves to modify the concrete Los Angeles River, to return parts of it to a more natural setting or to capture water, must not compromise its flood-protection function, say scientists.
Astronauts on the International Space Station use a 3-D printer to make a wrench from instructions sent up in an email.
A Japanese stem cell scientist at the heart of a scandal over false claims and fabricated research has resigned.
Tracking data reveals that golden-winged warblers fled one day before the April 2014 US tornado outbreak, probably because they "heard it coming".
Nasa's Orbiting Carbon Observatory produces its first global maps of carbon dioxide in Earth's atmosphere.
Fish are filmed more than 8,000m down in the Mariana Trench - the deepest place on Earth.
Shrinking the bubbles generated by ships could counteract the impact of climate change, a study suggests.
An amateur fossil hunter has unearthed a 7ft skeleton of a carnivorous marine reptile on a beach in south Wales.
Fewer than half the target number of badgers were killed in this year's cull in Gloucestershire, Defra announces.
Populations of most of Britain's bat species are stable or increasing following previous years of decline, report says.
An image has been released that shows the hairy moment that the Philae comet lander bounced back into space.
Satellites view how Christmas in the US and Ramadan in the Middle East brighten the globe.
The world's oldest water, which is locked deep within the Earth's crust, is present at a far greater volume than was thought, scientists report.
The creeping movement of the ground in California's Napa Valley, following its August earthquake, has been observed from space.
The UK government has formally unveiled its strategy for science and innovation.
Arctic ground squirrels could play a greater role in climate change than was previously thought, research suggests.
A theory that the Himalayas' mythical yeti is a rare polar bear-brown bear hybrid animal is being challenged.
Nasa's Curiosity rover has detected "belches" of methane gas on Mars - a gas that could hint at past or even present life on the planet.
Scientists assess the scale of the epic California drought and say it will require more than 40 cubic km of water to return the US state to normal.
The first colour image from the Rosetta spacecraft shows that Comet 67P is even more dark and monochrome than expected.
Scientists shed light on the energetic emission of radiation that occurs in thunderstorms.
A link between autism and air pollution during pregnancy has been suggested by scientists.
Tiny microbes uncovered by the deepest-ever marine drilling expedition are analysed by scientists to see how they can survive under the seabed.
Satellite data reveals that the most dense stores of carbon in Amazonia is not above ground in trees but below ground in peatlands.
UN member states reach agreement on how countries should tackle climate change, after differences cause talks to overrun by two days.
Two of the rarest birds of prey in England, which had been satellite tagged, vanish in unexplained circumstances.
"Restaurants" of dead meat set up for endangered vultures also attract an undesirable clientele of hyenas and jackals, according to a six-year study.
Brazilian researchers release thousands of mosquitoes infected with a bacteria that suppresses dengue fever into the environment in Rio de Janeiro.
Millions of monarch butterflies have arrived in Mexico's forests as part of their annual migration from Canada and the United States.