Discovery

IBM is giving users worldwide the chance to use a quantum computer; Google is promising "quantum supremacy" by the end of the year; Microsoft's Station Q is working on the hardware and operating system for a machine that will outpace any conventional computer. Roland Pease meets some of the experts, and explores the technology behind the next information revolution.Picture: Bright future for Quantum Computing, credit: Jonathan Home @ETH

Synthetic biology, coming to a street near you. Engineers and biologists who hack the information circuits of living cells are already getting products to the market. Roland Pease meets the experts who are transforming living systems to transform our lives.Picture: MIT spinout Synlogic is re-programming bacteria found in the gut as "living therapeutics" to treat major diseases and rare genetic disorders, courtesy of Synlogic

As a small rocky planet, Mars is similar in many respects to the Earth and for that reason, many have thought it may harbour some kind of life. A hundred years ago, there was serious talk about the possibility of advanced civilisations there. Even in early 1970s, scientists mused that plant-like aliens might grow in the Martian soil. The best hope now is for something microbial. But the discovery that even simple life survives there or did some time in its history would be a profound one. We would know that life is not something special to Earth.NASA’s Curiosity rover has discovered that 3.7 billion years ago, there were conditions hospitable to life on Mars – a sustained period of time with lakes and rivers of water. The earlier rover Spirit found deposits of silica from ancient hot springs which some planetary scientists argue bear the hallmarks of being shaped by microbes - possibly. The next five years may dramatically advance the hunt for life on Mars. In 2020 the European and Russian space agencies will send their ExoMars rover. That will drill two metres into the Red Planet’s surface and sample material shielded from the sterilising radiation. It will analyse for life both extant and extinct. In the future, robotic or possibly human missions may even explore Martian cave systems in Mars' vast volcanoes. Monica talks to Nasa's Penny Boston whose adventures in some of the world's most dangerous caves have convinced her that underground is the best place to look. Monica Grady is Professor of Planetary and Space Science at the Open University.Credit: Curiosity in Gale Crater, credit NASA-JPLProducer: Andrew Luck-Baker

In Lifechangers, Kevin Fong talks to people about their lives in science.Major General Charles Bolden – a former NASA administrator – talks to Kevin Fong about his extraordinary life, from childhood in racially segregated South Carolina to the first African American to command a space shuttle. He had originally hoped to join the Navy, but was unable to as an African American. Although Charles refused to take no for an answer and after much petitioning he was accepted. From there he reached for the stars.Image: Charlie Bolden, © Alex Wong/Getty Images

In Lifechangers, Kevin Fong talks to people about their lives in science.Astrophysicist and Director of the Hayden Planetarium in New York City, Neil deGrasse Tyson is well known in the US since he presented the TV series Cosmos: a spacetime odyssey. He talks to Kevin Fong about growing up in Brooklyn, becoming obsessed with the night sky and how he became a broadcaster and writer.Image: Neil deGrasse Tyson, © Cindy Ord/Getty Images for FOX

In the start of a new series of Lifechangers, Kevin Fong talks to three people about their lives in science.His first conversation is with a man better known for his life in science fiction, George Takei, the Japanese American actor who played Sulu in the TV series, Star Trek. They discuss the voyages of the Starship Enterprise and the ideas of other worlds featured in Star Trek. He talks about his own epic life journey – how his family was imprisoned when the US joined the Second World War and his campaigning against social injustice.Photo: George Takei making the Live Long and Prosper symbol, © Suhaimi Abdullah/Getty Images

Bees pollinate and can detect bombs and compose music. What would we do without them? The world owes a debt of gratitude to this hard working but under-appreciated insect. One third of the food we eat would not be available without bees, meaning our lives would be unimaginably different without them.Bee populations are dropping by up to 80% in some countries and the consequences are potentially catastrophic. The use of neonics pesticides in farming has been one of the main causes in the decline in bee numbers and now the farming world is having to take drastic action to try and reverse the trend. The situation has become so dire in some parts of China that the government set up a scheme in which humans had to pollinate plants by hand. Researchers in America have been so worried about a world without bees that they have started to develop robotic 'insects' to emulate their work. What’s causing the drop in populations and what might save them? Dr George McGavin hears from scientists and researchers in Africa, South America, Europe and Asia about the extraordinary lives and impact of bees, hearing the amazing ways in which they communicate and learn, and how complex and diverse different bee species are.

Since the birth of Louise Brown - the world’s first IVF baby - in England in 1978, many children have been born through in vitro fertilisation. IVF doesn’t work for everyone but over the last few decades basic research into human reproduction has brought about huge improvements. In the UK the Human Fertilisation and Embryology Act, passed in 1990, made it illegal for research on human embryos to be permitted beyond 14 days. In a dozen other countries, from Canada and Australia to Iceland and South Korea the 14 day limit is enshrined in law and in five others, including China, India and the US, there are guidelines that recommend that limit. Just recently researchers at Cambridge University have kept embryos alive in the lab for 13 days. They and others are calling for the limit to be extended for another one or two weeks, so they can study why early pregnancies fail. Matthew Hill reports on the issues raised by these new developments in embryo research.Image: Light micrograph of fertilized human egg cell © Science Photo Library

As the pace of technology moves at ever greater speeds, how vulnerable are we when making split second decisions? Kevin Fong flies with the Helicopter Emergency Medical Service, making split-second, life-or-death decisions. He examines how we can come to terms with the growing challenge of quick and accurate front line decision making.Picture: Presenter, Kevin Fong in air ambulance, Credit: BBC

Ever wished you could miss an entire cold dark winter like bears or dormice? Kevin Fong explores the possibilities than humans could hibernate. This ability could help us recover from serious injury or make long space flights pass in a flash.The first report on human hibernation in a medical journal was in the BMJ in 1900. It was an account of Russian peasants who, the author claimed, were able to hibernate. Existing in a state approaching "chronic famine", residents of the north-eastern Pskov region would retreat indoors at the first sign of snow, and there gather around the stove and fall into a deep slumber they called "lotska". No-one has ever found these peasants but there is serious research into putting humans into suspended animation, for long distance space travel or for allowing the body to recover from major injury.The greatest clues into how to pull off hibernation comes from the American Black Bear. Dr Kevin Fong, an expert in trauma medicine, talks to Dr Brian Barnes, Director of the Institute of Arctic Biology at the University of Alaska. He's done the most extensive study of black bears and observed how they slow down their metabolism. Fat-tailed lemurs are the only primates to hibernate. Duke University's Lemur Research Centre has discovered that they breathe just once every 20 minutes at their deepest torpor. These lemurs live longer than other animals of similar size. Could we find a way to use this trick of suspended animation? We could slow down out physiology ,cool down our bodies and hibernate during long space journeys. NASA too is working on how humans can survive trips to other solar systems.Kevin Fong goes to the lab of Professor Robert Henning at the University Medical Centre in Groningen where he's worked out how animals protect their organs when they slow their body metabolism , enter a state of torpor and then return to normal physiology. Rob Henning wants to apply this to humans, on earth and in space. Already doctors use cooling in patients who have serious head injuries. Could this technique be applied further to allow us to fight disease and buy time for surgeons in the hospital trauma unit? Producer: Adrian WashbourneImage credit: Spaceworks