science
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Nasa find first alien solar system with as many worlds as our ownKepler scientists team up with Google AI specialists to detect eighth planet orbiting distant star
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Polish up your pecs: women prefer strong men, say scientistsResearchers asked 160 women to rate the attractiveness of headless male torsos and every single woman chose the stronger men over the weak -
Could drinking tea really be linked to a lower risk of glaucoma?A study has found a link between hot tea and a lower risk of glaucoma, but experts say there’s no evidence that a cuppa will protect you from the condition -
Why are palaeontologists suing Trump?Proposed radical cuts to US National Monuments threaten America’s unique fossil heritage – but the palaeontologists are fighting back
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‘A different dimension of loss’: inside the great insect die-offThe long read: Scientists have identified 2 million species of living things. No one knows how many more are out there, and tens of thousands may be vanishing before we have even had a chance to encounter them
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New underwater discoveries in Greece reveal ancient Roman engineeringUnderwater excavations at Lechaion, the ancient harbour of Corinth, provide insight into engineering by the Roman Empire
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Lung experts 'deeply concerned' by low flu jab uptake in EnglandBarely two in five people in at-risk groups have been vaccinated as NHS hospitals buckle under strain caused by cold snap
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Size does matter: wine glasses are seven times larger than they used to beIn the 1700s the average-sized wine glass could hold just 66ml of the tipple. Today it’s not unusual to be handed a glass that holds almost half a litre
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key issues
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SpaceSpaceNasa find first alien solar system with as many worlds as our ownKepler scientists team up with Google AI specialists to detect eighth planet orbiting distant star
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BiologyBiology‘A different dimension of loss’: inside the great insect die-offThe long read: Scientists have identified 2 million species of living things. No one knows how many more are out there, and tens of thousands may be vanishing before we have even had a chance to encounter them
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GeneticsGenetics'You know that you’re gradually lessening': life with Huntington'sHuntington’s patient Peter Allen and his siblings – who also carry the gene – watched their mother and grandmother slowly die from the disease. But a new trial has given the family a glimmer of hope
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Medical researchMedical researchCould drinking tea really be linked to a lower risk of glaucoma?A study has found a link between hot tea and a lower risk of glaucoma, but experts say there’s no evidence that a cuppa will protect you from the condition
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PsychologyPsychologyRise of the robots and all the lonely peopleLetters: Some automation brings benefits, says Roger Backhouse, but people need human interaction too; while 13 signatories to a letter say that Christmas is the perfect time to tackle the UK’s loneliness epidemic
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PhysicsPhysicsIter nuclear fusion project reaches key halfway milestoneAfter a series of set backs the international project is back on track, say scientists, giving tentative hope for a major new source of clean power by 2025
in depth
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Struggling to express your feelings? Get an imaginary friendComedian and author David Walliams recently revealed he has clung on to the friends he invented as a child – something that can help even adults make sense of emotions, says psychotherapist Philippa Perry
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opinion
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It's beloved, but Australia's magpie is an international bird of mysteryOur magpies are not the same as Europe’s, so why do they share a name? The bird of the year has a complicated back story
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Theresa May, the prime minister, says the government will prioritise clean growth for Britain’s economy but also to help those that will suffer most from climate changeIt’s Britain’s duty to help nations hit by climate change
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pictures & video
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Supermoon skies: your best photographsWe asked you to share photos as parts of the world experienced the only supermoon of 2017. Here are some of our favourite images
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Supermoon trilogy begins – in picturesThe lunar phenomenon occurs when a full moon is at its closest point to earth so it appears larger than usual
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'It's a delicate place': Nasa captures 20 years of Earth's seasonal changes – videoA Nasa oceanographer explains how the US space agency successfully captured 20 years of changing seasons in a striking new global map of earth.
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Delving into a hidden world – in picturesThe winning and shortlisted entries for the the Royal Society of Biology’s 2017 Photographer of the Year and Young Photographer of the Year competitions
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SpaceX successfully launches reused Falcon 9 rocket – video
Billionaire SpaceX founder Elon Musk has hailed the twin achievement of salvaging a used rocket and re-launching it yet again as a revolutionary step in his quest to slash launch costs and shorten intervals between space shots
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Our Restless Earth: photography competition winners 2017 – in picturesThe Geological Society of London has announced the winners of its photography competition, entitled Our Restless Earth.
Is ‘Oumuamua an alien spacecraft? First scans show no signs of technology