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1 Cancer-killing stem cells engineered in lab
http://www.bbc.com/news/health-29756238
Scientists from Harvard Medical School have discovered a way of turning stem cells into killing machines to fight brain cancer. In experiments on mice, the stem cells were genetically engineered to produce and secrete toxins which kill brain tumours, without killing normal cells or themselves.
2 Surgeons transplant heart that had stopped beating
http://www.bbc.com/news/health-29751880
Surgeons in Australia say they have performed the first heart transplant using a "dead heart". Donor hearts from adults usually come from people who are confirmed as brain dead but with a heart still beating.
3 Why do professional sportsmen try trick shots?
http://www.bbc.com/news/blogs-magazine-monitor-29756833
Tottenham attacker Erik Lamela scored a spectacular goal from outside the area by using a "trick shot" on Thursday night. What drives professional sports people to attempt high-risk moves, asks Tom Heyden.
4 The day UFOs stopped play
http://www.bbc.com/news/magazine-29342407
Sixty years ago a football match ground to a halt when unidentified flying objects were spotted above a stadium in Florence. Did aliens come to earth? If not, what were they? It was 27 October 1954, a typically crisp autumn day in Tuscany.
5 Clear skies reveal water on distant Neptune-sized planet
http://www.bbc.co.uk/news/science-environment-29343987
Previously, only larger, Jupiter-like giants have been studied in this way. Working with three space telescopes, astronomers deduced the presence of water by measuring the colours of light the planet absorbed when it passed in front of its star.
6 Why India's Mars mission is so cheap - and thrilling
http://www.bbc.co.uk/news/science-environment-29341850
India's space programme has succeeded at the first attempt where others have failed - by sending an operational mission to Mars. The Mangalyaan satellite was confirmed to be in orbit shortly after 0800, Indian time. It is, without doubt, a considerable achievement.
7 Liberia signs 'transformational' deal to stem deforestation
http://www.bbc.co.uk/news/science-environment-29321143
Liberia is to become the first nation in Africa to completely stop cutting down its trees in return for development aid. Norway will pay the impoverished West African country $150m (£91.4m) to stop deforestation by 2020.
8 Brazil releases 'good' mosquitoes to fight dengue fever
http://www.bbc.co.uk/news/world-latin-america-29356232
Brazilian researchers in Rio de Janeiro have released thousands of mosquitoes infected with bacteria that suppress dengue fever. The hope is they will multiply, breed and become the majority of mosquitoes, thus reducing cases of the disease.
9 New Paypal partnership enables limited Bitcoin payments
http://www.bbc.co.uk/news/technology-29341886
Paypal is teaming up with three major Bitcoin payment processors so that certain retailers will be able to receive payments in the virtual currency via the firm's payment hub. The three processors are BitPay, Coinbase and GoCoin.
10 Ancient African fish dust nourishes Amazon
http://www.bbc.co.uk/news/science-environment-29361002
The Amazon is being fertilised by the remains of ancient fish from Africa. The nutrient-rich material is being carried in millions of tonnes of dust blown across the Atlantic from the Sahara every year.
11 How technology is changing disaster relief
http://www.bbc.co.uk/news/technology-29149221
When the British government delivered emergency aid to people fleeing Islamic militants in northern Iraq last month, one of its primary concerns was how the refugees might charge their mobile phones.
12 Novel antibiotic class created
http://www.bbc.co.uk/news/health-29306807
Scientists have designed a new class of antibiotic which seeks and destroys resistance genes in bacteria. The unique approach could be used to genetically engineer bacteria in our bodies to become less dangerous.
13 Beyond Angkor: How lasers revealed a lost city
http://www.bbc.co.uk/news/magazine-29245289
Deep in the Cambodian jungle lie the remains of a vast medieval city, which was hidden for centuries. New archaeological techniques are now revealing its secrets - including an elaborate network of temples and boulevards, and sophisticated engineering.
14 Brian Cox: 'Multiverse' makes sense
http://www.bbc.co.uk/news/science-environment-29321771
The presenter and physicist Brian Cox says he supports the idea that many universes can exist at the same time. The idea may sound far-fetched but the "many worlds" concept is the subject of serious debate among physicists.
15 Facebook developing giant drones to 'fly for months'
http://www.bbc.co.uk/newsbeat/29364362
Facebook is considering flying giant drones above us as the social network "figures out how to connect the world". The idea to develop huge unmanned aircraft comes from Facebook's Connectivity Lab, set up by company founder Mark Zuckerberg.
16
http://what-if.xkcd.com/115/
17 Slumbering lions win top wildlife photo prize
http://www.bbc.com/news/science-environment-29701853
Science correspondent, BBC News A stark image of lions resting on a rock outcrop in the Serengeti has won the 2014 Wildlife Photographer of the Year (WPY) Award.
18 Monster shark 'kept whales in check'
http://www.bbc.co.uk/news/science-environment-29743081
The extinction of the biggest shark known to science may have triggered whales to grow to their current hefty sizes, a study suggests. Megalodon, an ancient 14-18m-long predator that resembled a super-sized Great White, may have preyed on primitive baleen whales.
19 Google offers new email app dubbed Inbox
http://www.bbc.com/news/technology-29740101
Google is revamping its email service with a new mobile app it is simply calling Inbox. It is an attempt to reorganise overcrowded inboxes and ensure important emails are not overlooked.
20 Gladiators were 'mostly vegetarian'
http://www.bbc.co.uk/news/education-29723384
Roman gladiators had a diet that was mostly vegetarian, according to an analysis of bones from a cemetery where the arena fighters were buried. The study has been carried out by academics from the Medical University of Vienna in Austria and the University of Bern in Switzerland.

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