Science
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New robot ‘on the path to self-awareness’
Will robots ever be self-aware? Scientists at Colombia University have built a machine that learns about itself in the same way as a baby. Could it become more intelligent than a human?
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‘Almost three billion will go hungry by 2050’
Can we feed everyone? Tomorrow is World Food Day. We already make enough for 10 billion people, and yet one in nine humans does not have enough food. How did that happen?
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‘No human is limited,’ says marathon champion
Was it tainted by technology? Eliud Kipchoge has entered the pantheon of the greats alongside Roger Bannister who ran a four-minute mile, 65 years ago. A triumph for sport — or for science?
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Humpback whale ‘swallows’ sea lion whole
Is nature competitive or co-operative? A rare image of a sea lion flailing in the jaws of a humpback whale is not what it appears to be — challenging our ideas about survival of the fittest.
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Everything we know about maths could be wrong
Is maths best described as an art or a science? A top academic fears that modern theorems are riddled with errors. Computers could fix them. But if they did, would the result still be maths?
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Humanity could one day live without sleep
What if we never needed sleep? Scientists have discovered a genetic mutation that lets its carriers live happily on only a few hours’ sleep, and it could be spreading through the population.
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Mind-reading fears as brain science advances
Should we worry if computers know what we are thinking? Huge advances in the science of brain-computer interfaces are helping disabled people. But they also open a window to our secrets.
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Revealed: sunflowers are social creatures
Should plants have rights? Scientists increasingly think of plants as intelligent creatures. New studies show they can tell each other apart, and use 20 senses to understand their environment.
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It has rain, water, clouds: so, maybe life too!
What a wonderful find — but does it have any point? Astronomers are thrilled by yesterday’s announcement about a habitable planet. The bad news: it would take two million years to get there.
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Seals, dolphins, porpoises thriving in Thames
Does nature always bounce back? The Thames, declared dead, devoid of oxygen in the 1950s, has been brought back to life by its new marine life — including sharks and the odd, visiting whale.
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The day the dinosaurs died
A young scientist has found a record of the most significant event in the history of life on Earth. Stunning fossils show what happened when a huge asteroid slammed into the Gulf of Mexico.
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Emergency plan to deflect giant asteroid
Are asteroids our biggest threat? Scientists are now working on a plan to protect Earth from Didymos, a giant rock the size of Egypt’s great pyramid — one of 20,000 known near-Earth objects.
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Tests show Loch Ness monster may be giant eel
Why are we so entranced by monsters? Yesterday, a team from the University of Otago in New Zealand revealed its conclusion that Britain’s most famous Leviathan must be a gigantic eel.
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Scientists create first human-monkey hybrid
Should animals ever be part-human? Faced by a deadly shortage in human organs for life-saving operations, our only hope may be animals with human DNA. But there are serious ethical concerns.
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Massive study reveals there is no gay gene
Are experiments like this harmful? Human sexuality is far more complex than previously thought, say scientists. But some in the LGBT community say the research should never have taken place.