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Nasa 2hr 44min ago

US scientists boycott Nasa conference over China ban

4 Oct 2013: Nasa facing backlash from US researchers due to rejection of Chinese nationals from conference
Northern lights 14hr 32min ago

Aurora borealis seen from Minnesota - video

4 Oct 2013: Video (1min 11sec)
Central Minnesota is treated to a rare display of the northern lights, or aurora borealis
Archaeology 14hr 37min ago

Roman skulls found at Crossrail site in London - video

4 Oct 2013: Video (1min 46sec)
Archaeologists working at Crossrail's project site in the City of London have unearthed 20 Roman skulls
Egypt 1 day ago

Replica of Tutankhamun's tomb aims to divert tourists from threatened site

3 Oct 2013: Creators hope £420,000 facsimile will give visitors a better understanding of tomb as they will be able to stay for longer
Climate change 1 day ago

UK carbon budget should not change, Ed Davey told

3 Oct 2013: Climate Change Committee tells government there is no legal or economic justification to change carbon reduction targets
Bees 1 day ago

Traffic fumes make honeybees unable to recognise flower scent, study shows

3 Oct 2013: Scientists find reactive pollutants in diesel make oilseed rape flowers 'smell' different, affecting bees' ability to find food
Mars 1 day ago

Mars once covered in giant supervolcanoes, scientists find

3 Oct 2013: Findings raise questions about conditions on the planet and whether or not it could have harboured microbial life

Climate change scepticism 8hr 15min ago

Global warming sceptics using media campaign to discredit IPCC

4 Oct 2013: Bob Ward: Lord Lawson's group GWPF teams up with Civitas and the US Heartland Institute to distort debate on climate change
Comment is free 2 days ago

Is Britain becoming a nation of accent snobs?

2 Oct 2013:
Erica Buist: As an accent coach I increasingly hear from people sidelined because they sound foreign. Yet few Britons take the trouble to pronounce bruschetta correctly
Comment is free 3 days ago

The BBC betrayed its values by giving Professor Carter this climate platform

1 Oct 2013: John Ashton: How can letting a geologist appear as a legitimate climate scientist to ridicule the IPCC report be in the public interest?
Comment is free 4 days ago

For scientists in a democracy, to dissent is to be reasonable

30 Sep 2013: George Monbiot: Government policy in Britain, Canada and Australia is crushing academic integrity on behalf of corporate power
Comment is free 5 days ago

If Britain wants to cut energy bills it must get tough with the United States

29 Sep 2013:
Chris Huhne: The key to lower prices is neither Labour's price-freezing nor the Tories' fracking: America needs to export more of its cheap gas
Comment is free 6 days ago

No more denial. Time to act on climate change

28 Sep 2013:
Observer editorial: Our leaders must set the climate change gainsayers to one side and confront imminent catastrophe

Blooming lovely: nano flowers, ferns and gold stars – in pictures

Gallery (9 pictures) This month's collection of images from the world of nanotechnology includes the tiniest of flowers, minuscule gold stars, and crystal layers that could replace silicon as the main building blocks of the information age
Hundreds of open access journals accept fake science paper

Publishing hoax exposes 'wild west' world of open access journals and raises concerns about poor quality control
Let's be honest – the global warming debate isn't about science

Dana Nuccitelli: The scientific evidence on human-caused global warming is clear. Opposition stems from politics, not science.
Meet the organ transplant team – video

Video (11min 32sec) The recently opened Institute of Transplantation in Newcastle upon Tyne is the first of its kind in the UK – a 'one-stop shop' for transplant patients

Why is everyone ignoring my brilliant solution to the debt ceiling crisis?

Two ingenious mathematical paradoxes could allow us to create wealth from nothing thereby solving all economic problems
A whale of a poem

GrrlScientist: What do whales, urban legends and poetry share in common?
Open access publishing hoax: what Science magazine got wrong

Guardian Professional
The sting operation on publishers doesn't point to the real crisis, says Curt Rice – the meltdown of the peer review system
Ocean science, Gibraltar and geopolitics – then and now

In the cold war, as now, the ocean environment around Gibraltar became a proxy stage on which geopolitical dramas played out, argue Sam Robinson and Lino Camprubi
Element of the week: seaborgium

GrrlScientist: The ongoing controversy over naming rights
Butterbutt biology: warblers, migration and mitochondria

GrrlScientist: A non-migratory population of songbirds appears to have acquired mitochondria from their close relatives that are migratory, potentially allowing these birds to migrate better
Spain's new research budget fails to deliver

As Spanish researchers staged a mock funeral in Madrid, the government released its 2014 budget. But there was little good news for Spanish science, writes Amaya Moro-Martín
The science and magic of jam-making

Commercial jams are the sickly sweet sisters of homemade jam, but a grasp of the science will help you get yours just right, says Andy Connelly
More blogs

International Space Station astronauts use robotic arm - video

Astronauts on the International Space Station use a robotic arm to grab an unmanned capsule out of space