Astronomers spot the tell-tale signs of so-called "dwarf galaxies" being digested by much bigger spiral galaxies.

A study suggests climate change is not responsible for civil wars in Africa, challenging widely held assumptions.

High definition (HD) video is being used to assess how wave energy devices will affect the ecology of coastal areas.

Some of the UK's rarest bumblebees are at risk of becoming extinct as a result of inbreeding, research suggests.

A massive expansion is to take place at Europe's largest onshore wind farm in East Renfrewshire.

Carbon-rich organic molecules, which serve as the building blocks of life, may be present on Mars after all, say scientists.

Cockroach and locust brains are a rich source of antibiotics powerful enough to tackle MRSA, researchers say.

Former UK Prime Minster Tony Blair warns world leaders they may pay a heavy price in history if they fail to tackle global warming.

A group of Danish rocket enthusiasts trying to launch a dummy 30km into the sky abort the mission when a valve on their rocket freezes up.

Researchers begin a study of the "super-sized" mice found on a tiny Scottish island in the Outer Hebrides.

Physicists explain one of football's most spectacular free-kicks, showing that Roberto Carlos's 1997 "impossible goal" was not a fluke.

A mix of chemicals borrowed from plants with tiny tubes of carbon can spontaneously create tiny, self-repairing solar cells.

Nasa is aiming to get closer to the Sun than ever before, with plans to plunge a car-sized unmanned spacecraft into the star's outer atmosphere.

Israeli scientists believe they have identified why Arabic is particularly hard to learn to read.

Ultrafine measurements of atmospheric gases could help scientists track down the last sources of CFCs thought to be slowing the recovery of the ozone layer.

There is no place for God in theories on the creation of the Universe, Professor Stephen Hawking concludes in a new book.

A potentially revolutionary circuit component, once a laboratory curiosity, is to be mass-produced for the first time.

Europe's Herschel space telescope spies an aging star that has surrounded itself in hot water vapour.

An ancient reef may provide scientists with clues about what will happen to coral when sea temperatures rise.

The re-introduction of wolves to a US National Park has not helped re-establish quaking aspens, as many researchers had hoped.

The government's chief environment scientist calls for more openness in admitting the UK's cuts in greenhouse gas emissions are an illusion.

A growing number of New York sky-scrapers switch off their lights at night to help reduce the number of migratory birds hitting the buildings.

A species of acacia tree found in Eastern Africa seems to be protected from elephant damage - by the ants that live on it.

Some 57,000 people have been forced from their homes because of dramatic floods in south-western Sudan over the past month, officials say.

Great apes play tag in similar way to humans, an international team of scientists finds.

New-born twin giant pandas made their first public appearance at a zoo in Japan on Friday in Shirahama.

Researchers begin a three-year study to uncover the secrets of St Kilda's super-sized field mice.

Hundreds of sharks have been spotted off the Queensland coast.

There is no place for God in theories on the creation of the Universe, the physicist and mathematician Professor Stephen Hawking has said.

A rare Chinese tree has flowered for the first time in 23 years at Kew's country estate in West Sussex.

One of the giant booster rockets intended to power the first stage of flight on Nasa's next rocket has been tested in the US.

Researchers working on trials of genetically modified crops in Norfolk have grown potatoes which resist disease.

Dr Andy Harland of Loughborough University analyses what new free-kick trajectory findings mean for footballers.

The secrets behind some of the UK’s newest inventions

How likely is it that you'll live to be 100 years old?

The Hubble telescope re-images supernova first seen in 1987

Inside the Royal Navy's powerful and stealthy attack submarine