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Nasa delays its next Mars missionThe US space agency (Nasa) has delayed the launch of its Mars Science Laboratory rover mission from 2009 to 2011.
Seawater holds key to future foodGrowing crops in salt water is becoming necessary to overcome shortages of fresh water, scientists say.
'Solar taxi' goes round the worldSwiss adventurer Louis Palmer takes his solar-powered car to the UN climate change talks after a round-the-world trip.
Ancient supernova mystery solvedAstronomers have captured light echoes of the historic supernova of 1572, which overturned Aristotle's theory of the universe.
New flying reptile species foundA new fossil species of flying reptile - with a wingspan the size of a family car - has been uncovered by scientists.
Venus ultraviolet puzzle 'solved'Scientists have cracked one of the many mysteries of Earth's nearest planetary neighbour Venus.
A step closer to self-powered kitEfficiency increases in materials that turn vibration into energy could make for devices powered by the sound of your voice.
DNA database 'breach of rights'Keeping the DNA of two Britons with no convictions was a breach of their human rights, a European court rules.
A tool bag lost by an astronaut should be visible in the north skyA tool bag lost while an astronaut was working on the International Space Station should be visible from the Highlands.
Ancient rock art reveals previously unknown bat speciesAn ancient cave painting in Australia depicts a previously unknown species of large bat, according to researchers.
The UK's Climate Change Bill may curb carbon emissions - but at what cost?The UK's Climate Change Bill could cost each family in the UK up to £10,000, warns Conservative MP Peter Lilley.
Earth needs all the friends it can getDespite the environmental now being a mainstream topic, green campaign groups are still as relevant as ever.
Richard BlackApplause as Queen dips a toe into happy waters
Genetic storageDNA should not be retained, European court rules
Brilliant future"Crown jewel" of European science to get upgrade
In picturesBangladeshis send climate change message
Beware. Triffids!Why the enduring love affair with man-eating plants?
Baby talkIs it ethical to add more people to our crowded planet?
Single cancer cell 'poses danger'Cancer researchers may have underestimated the power of some cancers to spread and cause new tumours, say US researchers.
World 'must tackle space threat' A leading UN scientist says countries must work together to tackle the threat of asteroids colliding with the Earth.
First light for US 'laser jumbo'The US Missile Defense Agency has test-fired a laser weapon system housed aboard a 747 plane.
Dig finds Stone Age sculpturesAn excavation in Russia has unearthed female figurines, tools, and a cone-shaped carving of unknown purpose.
How to measure a shark's biteHow to measure the bite of a great white shark
Noisy oceans 'threaten sea life'Increasing noise pollution in the world's oceans is threatening the survival of whales and dolphins, a UN-backed conference says.
Harbour seals' decline 'alarming'Marine biologists are baffled by a dramatic decline in numbers of harbour - or common - seals from UK shores.
Giant wind farm gets go-aheadOne of the world's largest wind farms, which will help power around a half a million homes, has been approved.
Sea's pollution hotspots 'missed'Large sources of pollution to the Baltic Sea have been missed by existing monitoring efforts, according to a Swedish study.