In response to furor over undercover videos, the organization’s move is intended to take away any basis for attack ‘to advance an anti-abortion political agenda’Responding to a furor over undercover videos, Planned Parenthood says it will maintain programs at some of its clinics that make fetal tissue available for research, but will no longer accept any sort of payment to cover the costs of those programs.Anti-abortion activists who recently released a series of covertly filmed videos have contended that Planned Parenthood officials sought profits from their programs providing post-abortion fetal tissue to researchers. Planned Parenthood said the videos were deceptively edited and denied seeking any payments beyond legally permitted reimbursement of costs. Continue reading...

Survey of thousands of animal studies for drugs to combat disease finds majority not rigorous enough, leading to trials that waste time, money and sufferingThe search for new drugs to combat major diseases is being set back by shoddy animal research, according to work by two teams of scientists.An Edinburgh University survey of thousands of animal studies found that the majority were not rigorous enough to rule out effects that routinely inflate the benefits of new treatments. Continue reading...

Level of belief has increased seven percentage points in the past six months as climate change brings weather events closer to homeAround 70% of Americans believe in the science behind global warming - the highest level of acceptance in the US since 2008 - according to a new survey.The level of belief has increased seven percentage points in the past six months, the polling by the University of Michigan and Muhlenberg College shows. Continue reading...

The aurora borealis is expected to be visible in Britain for the next few weeks. We’d like to see your pictures and videos

International Space Station astronaut Scott Kelly has been taking a series of remarkable images of Australia from his vantage point 400km above the Earth. His colour-enhanced images, shot with a Nikon D4 camera, portray a vivid and sometimes unrecognisable landscape. Kelly’s photographs, which he posts on Twitter, have been shared thousands of times since he began his year-long mission in March 2015 Continue reading...

Important ecosystems could be massively damaged by 2050 unless greenhouse gas emissions and localised pollution is drastically reduced, researchers sayThe food chains of the world’s oceans are at risk of collapse due to the release of greenhouse gases, overfishing and localised pollution, a stark new analysis shows.A study of 632 published experiments of the world’s oceans, from tropical to arctic waters, spanning coral reefs and the open seas, found that climate change is whittling away the diversity and abundance of marine species. Continue reading...

Ada Lovelace Day celebrates women in science, highlighting role models to inspire the next generationHappy Ada Lovelace Day everyone! Today is a day to celebrate inspirational women in science, technology, maths and engineering, in the hope that by shining a light on such people and increasing their visibility, they can inspire future generations.Ada Lovelace Day was founded in 2009 by Suw Charman-Anderson, and part of her reason for doing this was a worry that women in tech were invisible. The idea was a positive one - rather than highlighting the problem, highlight the unseen women and shout from the rooftops about all the amazing things they’ve achieved. Ada Lovelace was an obvious choice of mascot for such an endeavour. Continue reading...

For every nine boys in international mathematics competitions, there is just one girl. But critics say a female-only olympiad risks making the division worseWhen Lisa Lokteva realised as a child that she was a maths whizz, her grandmother gave her a present. “Here is a book about female mathematicians,” her grandmother said. “Read it and learn how bad their lives are.”Now 18, Lokteva is a bronze medallist and the only female member of the Swedish maths team at the International Maths Olympiad (IMO) this year. Continue reading...

Were you checkmated or did you find the solution to the classic and other mutilated chessboard puzzle? The answer is hereWant to see the solution in a video? Click hereEarlier today I set you two mutilated chessboard puzzles.1) The classic: Continue reading...

The chessboard was mutilated in two ways, but did you solve how to cover it with dominoes or were you outmanoeuvred? Continue reading...

100 years ago today Edith Cavell was executed by a German firing squad for smuggling Allied soldiers out of occupied Belgium. Vanessa Heggie explains how a nurse became a spyAt dawn on 12 October 1915 the British nurse Edith Cavell was killed by a firing squad, after a German military court found her guilty of helping Allied soldiers escape from occupied Belgium. It was strongly implied that she was also involved in espionage, passing information about German military movements and plans back to the UK. The British Government denied that she was a spy, but recently the ex-head of MI5, Dame Stella Rimington, has revealed new evidence that strongly suggests Cavell was involved in smuggling information as well as men.However much Cavell knew about the information being carried on the bodies of the men she saved – written on cloth and sewn into clothes, or hidden in shoes – her death made her a popular martyr, as her execution provoked a strong public reaction of horror. Author Arthur Conan Doyle said: Continue reading...

The mutilated chessboard is a classic puzzle. But can you square up a solution to the other problem?Want to see more? Watch a video explanation of the puzzle here

Can you cover a chopped into chessboard? Watch Alex setting a two-part problem needing some alternative thought and moves. The first involves the classic mutilated board problem, but then there’s also the other problem. Confused? Don’t be. Watch Alex setting it all up here.

Two hundred years after her birth, the Science Museum in London celebrates Byron’s daughter, the woman who prophesied the computer ageIn the bowels of London’s Science Museum, Dr Tilly Blyth gingerly opens an envelope. Inside is a lock of long, dark hair tied with a green ribbon. It’s a curiously poignant moment. The lively, intelligent woman to whom it belonged died young, but her mathematical work with computer pioneer Charles Babbage has seen her become a paragon for women in science and technology. Gazing down at the tresses, the centuries seem to shrink away. Ladies and gentlemen, Ada Lovelace is in the room.It’s an impression Blyth hopes to share. Curator of a new exhibition at the museum opening on “Ada Lovelace day”, she is hoping to breathe life back into the tale of Lord Byron’s daughter in the year of her 200th birthday, bringing together the locks with portraits, letters and artefacts to allow visitors to capture a glimpse of Lovelace “as an individual”. Continue reading...

The economic commentator examines how our attitude to risk leads to disasterCareering along a French motorway, Greg Ip caught sight of a thought-provoking sign: “La vitesse aggrave tout” – “speed makes everything worse”. The faster we drive, the more extensive the damage when something goes wrong. He had already had good reason to ponder the nature of risk as a journalist and economic commentator covering the catastrophic financial crisis that swept through markets from 2007. In the run-up to the crash, consumers and even policymakers had come to believe that smart regulators and forward-thinking bankers had made the world of money a much safer place.The fundamental insight of Ip’s new book, Foolproof, is that this very belief was a key factor in the lead up to the crash. When people believe they are safe, they take more risks – they drive faster, in motoring terms – and “speed makes everything worse”. Or as the economist Hyman Minsky, whose work Ip revisits, put it: “Stability is destabilising.” Continue reading...

On a cold December night in 1758, a German farm-owner from Dresden stood resolute in the quiet, frosty air, spellbound at the image in the eyepiece of his telescope. It must have felt like a gift from the heavens. After all, it was Christmas night and Johann Georg Palitzsch had become the first person to witness the return of a long-awaited visitor; a tumbling snowball seven miles wide from beyond the orbits of Uranus and Neptune – as yet undiscovered worlds. The object in question was already a legend and its return had been foretold by one of the greatest astronomers of the age. Palitzsch knew he had recovered Halley’s Comet.In 1705, 18 years before Palitzsch was born, Edmund Halley – already a prolific scientist with decades of experience – lent his considerable intellect to the long-standing problem of comets, with the benefit of a deep understanding of gravitation. Two decades earlier Halley had edited the work of Isaac Newton, who had himself addressed the apparently strange behaviour of comets, demonstrating that his theory could adequately explain their motion. Halley undertook a systematic study of past sightings, and as a result presented to the world that most scientific of things – a prediction. He realised that four recorded apparitions in 1456, 1531, 1607 and 1682 could have been the result of one object in a periodic, highly elliptical orbit around the Sun. If he was right, his computed orbit suggested that the comet would return again in 1758. Continue reading...

Today no-one doubts that the Earth’s surface is made up from a moving jigsaw of tectonic plates. Primary school children learn that South America was once connected to Africa, and that India’s collision with Asia pushed up the Himalayas. In hindsight plate tectonics seems obvious, and yet just 60 years ago the prevailing view was that continents were fixed in place.Back in 1912 Alfred Wegener, a German geophysicist, noticed that if Earth’s landmasses were pushed together their boundaries appeared to fit loosely together, leading him to hypothesise that continents slowly drift around the Earth. But the idea was met with scepticism, and it wasn’t until 1965 that the tide of opinion really changed. The trigger was a paper published fifty years ago in the Philosophical Transactions of the Royal Society of London, titled “The fit of the continents around the Atlantic” . Continue reading...

The hidden factor behind our sense of fairness is a desire to negotiate our way through lifeA four-year-old girl sees three biscuits divided between a stuffed crocodile and a teddy bear. The crocodile gets two; the bear one. “Is that fair?” asks the experimenter. The girl solemnly judges that it is not. “How about now?” asks the experimenter, breaking the bear’s single biscuit in half. The girl cheers up: “Oh yes, now it’s fair. They both have two.” Strangely, children feel very strongly about fairness, even when they scarcely understand it.Adults care about fairness too – but how much? One way to find out is by using the ultimatum game, created by economist Werner Guth. Jack is given a pile of money and proposes how it should be divided with Jill. Jill can accept Jack’s “ultimatum”, otherwise the deal is off, and neither gets anything. Continue reading...

Take our personality quiz to find out whether you have an analytic or intuitive thinking styleDo you know your thinking style? Find out with these three questions…a) A notebook and pencil cost £1.10 in total. The notebook is £1 more than the pencil. How much does the pencil cost? Continue reading...

‘Equine therapy’ may sound new age, but the latest neuroscience suggests it has real benefits, says Matthew GreenWith her ballerina-like grace and stand-offish demeanour, Isis does not strike visitors as an obvious candidate for the messy work of unearthing deeply buried feelings of grief or shame. Even if they can get past the fact that she is a horse.The chestnut Arabian mare is at the leading edge of an emerging school of therapy that promises a path to healing that is equally open to survivors of war as to those from broken relationships. While there have been few formal studies, there are signs that this seemingly old-fashioned form of therapy could chime with discoveries from neuroscience on how new pathways can be laid down in the brain. Continue reading...

Cryonics – the preservation of animals and humans at ultra-cold temperatures – is booming in the US, notwithstanding the $100,000 minimum price tagCall the headquarters of Alcor in Scottsdale, Arizona, and you are greeted by a recorded message. “If you would like to report the death or near-death of an Alcor member,” says a chirpy midwestern voice, “please press two.”The Alcor Life Extension Foundation – to give it its full title – has an unexceptional grey concrete exterior that resembles a regional bank branch. Inside, however, are the bodies or brains of 138 dead people, stored in vats of liquid nitrogen in the hope that, at some point in the future, advances made in science will be capable of bringing them back to life. Continue reading...

Leading biologist leaves writers’ association post in protest at ‘unbalanced’ stance on reporting of storyA new dispute has erupted over the fate of Sir Tim Hunt, the Nobel prizewinner accused of making sexist remarks at an international conference earlier this year. Sir Colin Blakemore, one of Britain’s leading scientists, has resigned as honorary president of the country’s science writers association over its support for the journalist whose reports led to Hunt’s dismissal.Blakemore said he had been frustrated by the decision of the Association of British Science Writers (ABSW) to continue to give unconditional support to Connie St Louis, who first claimed Hunt had made sexist remarks. Continue reading...

The future had looked bleak after Jacques Chirac took half of the museum’s collection for his own grand legacy projectFor years they’ve lain in dim corridors gathering dust, only rarely making forays into the wider world. They are some of the world’s most fascinating discoveries, which help tell the story of human evolution. Now treasures ranging from the remains of Cro-Magnon man to the celebrated 23,000-year-old Venus of Lespugue – as well as René Descartes’s skull – are once again to go on show with the rebirth of one of the world’s greatest museums of prehistory.More than a decade ago Paris’s Musée de l’Homme was facing extinction. Former president Jacques Chirac had purloined half of its collection for his grand legacy project, the Quai Branly museum of arts and civilisations, leaving the mankind museum without a raison d’être. Continue reading...

It’s National Biology Week!

From avoiding lava bombs while volcano boarding, to slacklining over a 300ft gorge. What makes some people risk their life for their sport?Any snowboarder visiting the island of Tanna in the South Pacific, as I did in 1995, would have had the same thought when they set eyes on its volcano. Mount Yasur has a near-vertical, 1,000ft pumice slope on its north side, and I looked at its treeless, virgin face and said to myself, “I’ve got to go down that.”

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Developments such as ovarian tissue transplants and single embryo transfer are making motherhood a graspable reality, but services must be safe and accessibleI have been lucky. My children were created and were born with relative ease. Speaking to those who I know have struggled with infertility gives some small insight into the complex series of physical, emotional, financial and medical transactions that operate on a intensely heightened plane of reality.For the one in six couples in the UK who struggle to conceive, the news of successful ovarian tissue transplants leading to pregnancy could bring new hope. A Danish study followed women who underwent the procedure after cancer treatment had reduced their fertility. The transplanting of frozen tissue was found to be safe and a third of women went on to become pregnant – half without the need for IVF. The procedure offers tangible results, not just for cancer patients but also for women who want to postpone motherhood until later in life. Equally heartening is the news that womb transplants are soon to take place in the UK as part of a clinical trial. Continue reading...

Archaeologists find stone tools left on Islay by hunter-gatherers about 12,000 years ago, long before humans were thought to have been thereStone tools left by ice age hunter-gatherers who camped out on the east coast of the Scottish island of Islay about 12,000 years ago have been uncovered thanks to a herd of pigs that began rooting up stone implements on the shore.The finds push the earliest evidence of human activity in Scotland back by more than 2,000 years – it had been thought that the earliest settlers crossed the landbridge after the ice age, about 10,500 years ago – and by 3,000 years on Islay. Continue reading...

The social anthropologist Sir Jack Goody gained a BLitt in 1952 at Oxford, under Edward Evans-Pritchard, rather than a doctorate. That came two years later at Cambridge, with Meyer Fortes, and Goody wrote perceptively about both figures in The Expansive Moment: The Rise of Social Anthropology in Britain and Africa 1918-70, published in 1995.In 1983 he helped to initiate the archive of 250 or so sound and film recordings of leading anthropologists and others that has been carried forward by his friend and colleague Alan Macfarlane as part of the Cambridge Rivers Project, named after an earlier pioneer of the discipline, WHR Rivers. Goody himself was interviewed in 1991 by his friend since undergraduate days at St John’s College, Eric Hobsbawm. Continue reading...

Nurse’s readmission with complications arising from infection is a reminder of how devastating virus can be even to survivorsLast week the Scottish nurse Pauline Cafferkey was in celebratory mood as she met the prime minister’s wife, Samantha Cameron. She flew down to London after being selected for a Pride of Britain award by the Daily Mirror and joined other winners and families for a reception at No 10 Downing Street.Cafferkey had contracted Ebola when volunteering for Save the Children’s Kerry Town hospital outside Freetown in Sierra Leone last December. After successful treatment at the high-level isolation unit at the Royal Free hospital in London, she was discharged three weeks later. Continue reading...

Since HG Wells’s War of the Worlds, the genre has used the red planet as a theatre for the battle between utopian science and violent natureMars has always been, as cosmologist Carl Sagan wrote, a “mythic arena onto which we have projected our Earthly hopes and fears”. For the ancient Greeks, the red dot in the night sky was an aspect of Ares, god of war, who unleashed conflict when the balance was lost between Apollo – god of reason – and Dionysus, god of the irrational and chaos. This conflict between Apollonian reason and Dionysian chaos has been projected onto Mars ever since.The canals that the astronomer Giovanni Schiaparelli claimed in 1877 to see on the surface of Mars were taken as evidence that, like newly industrialised nations of Europe, “Martians” might be reasoning, civilised creatures. Later observations proved the canals to be illusions, but the idea of a Martian civilisation took hold, and became the mainstay of stories about the red planet. Continue reading...

Are you the kind of person who relies more on your senses or your sixth sense?Dean Burnett helps you get to the truth Continue reading...

Brexit would damage our research base, our economic prospects and our place in the world. The Scientists for EU campaign will make a compelling case for “in”.This morning, the Scientists for EU campaign is officially launched. Our 6,400 grassroots supporters on Facebook are now joined by an advisory board comprising some of the UK’s leading scientists, including Lord Martin Rees, Sir Tom Blundell and Dame Anne Glover. The cross-party campaign also has representation from Labour, Conservatives and the Liberal Democrats. Together we will be fighting for the UK to remain part of the EU.Six months ago, most political arguments for staying in the EU focused on single markets and top tables. However, the terms of the EU referendum are changing. At the party conferences over the last few weeks, research and universities have featured more prominently in pro-EU speeches. Continue reading...

Thousands of optical sensors beneath the surface of the south pole detect neutrinos from deep space, giving clues to cosmic eventsThey have had to sort through 100 billion subatomic particles to perfect their craft, but physicists using the IceCube Observatory in Antarctica now believe they are on course to create a new science: neutrino astronomy.Neutrinos emanate from many sources, including black holes and energetic galactic cores and are known to come in three interchangeable forms, or flavours – a discovery that has won Takaaki Kajita and Arthur McDonald the 2015 Nobel prize for Physics. By learning how to channel neutrinos inside their instruments, physicists can look at distant, explosive events in a new way. Continue reading...

Female comic and video game characters often engage in combat while wearing outfits that are very revealing, particularly around the breast area. This is because the scientific properties of breasts mean they’re formidable weapons which shouldn’t be concealedForget guns. Forget nukes. The real ultimate weapon? Breasts.Exposed breasts are a significant tactical advantage. In pop culture, large-breasted women fighters invariably wear very revealing, breast-emphasising outfits. There are numerous examples in comics (Wonder Woman, Power Girl, Psylocke, Emma Frost, Zatanna, Black Cat, She Hulk etc.) and video games (Lara Croft, Bayonetta, Blaze, Ivy, Rayne, Mai etc.) Presumably such capable individuals would be able to wear what they like, so why would they choose to expose so much skin to danger? Continue reading...

More than 150 years ago, a church minister from Monimail in Fife first suggested that rockets could fly to the moon and go faster in the vacuum of space - before Jules Verne

From black holes to Einstein's theory of relativity, Carlo Rovelli's acclaimed book condenses the revelations of modern physics into just 78 pages - listen to find out moreCarlo Rovelli is an Italian theoretical physicist and writer who currently works in Marseille. His work is mainly in the field of quantum gravity, where he is among the founders of the loop quantum gravity theory. His book Seven Brief Lessons On Physics has sold more copies in Italy than any other book, 50 Shades of Grey included, and it's just been published in English.He spoke to Ian Sample and Nicola Davis about the beauty and mind-bending implications of modern physics. Continue reading...

The Google Lunar X prize, which aims to award $30m (£19.6m) to the first private company to land a spacecraft on the Moon, has entered its final phase.An Israeli company, SpaceIL, has submitted a signed launch contract with Elon Musk’s SpaceX to the competition’s organisers. Continue reading...

First spacecraft ever sent to the dwarf planet continues to transmit data after sending the first color images of Pluto’s atmospheric hazes last weekPluto has blue skies and exposed, bright red water ice, Nasa announced on Thursday, as the first spacecraft ever sent to the dwarf planet continues to send data from the edge of the solar system.Nasa’s New Horizons probe sent the first color images of Pluto’s atmospheric hazes to Earth last week, revealing that the mysterious mix of particles scatter blue light when sunlight reaches them. Continue reading...

Patients welcome results for treatment from pharmaceutical firm Roche, which says it could also treat the primary-progressive form of the diseaseA new drug for multiple sclerosis can cut relapses by almost 50% more than the current standard treatment, its manufacturer claims, raising the hopes of sufferers of the disease.The Swiss pharmaceutical giant Roche announced the headline results for its drug, ocrelizumab, but has not published the detailed outcome of its trials. Continue reading...

Chris McCann of the eBible fellowship admits it was ‘surprising’ the world did not end on 7 October but says they will ‘keep studying the Bible’ for cluesThe leader of a Christian group who claimed that the world would end on Wednesday has admitted his prediction was “incorrect”.

To convince most scientists, a mission would need to spot physical remnants of life, such as microbial fossils that retain a cellular structureThe first box scientists need to tick in the hunt for alien life is the presence of water. Life as we know it cannot emerge and survive without water, so a planet needs water to be habitable. Mars had lakes and oceans in the distant past, but now only very salty brines flow there. Continue reading...

The Atlas V rocket is carrying a payload for the National Reconnaissance Office and 13 research nanosatellites for Nasa and the NROA rocket carrying a secret payload for the US government has successfully launched from the central California coast.The Atlas V rocket lit up the sky at 5.49am Thursday, lifting off from Vandenberg air force base toward low-Earth orbit. Continue reading...