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Science

  • Woundcare and amputation in C. maculatus

    Animal behaviour
    Ants can carry out life-saving amputations on injured nest mates, study shows

    Research on carpenter ants provides first example of a non-human animal severing limbs to curb infections
  • Richard Forrest walks along Lyme Regis beach in Dorset, where he regularly hunts for fossils.

    Photo essay
    The fossil finder: one man’s lifelong search for fragments of Britain’s Jurassic past

  • Two gold-and-pink elephant hawk-moths on fuschia flowers

    Insects
    ‘Not just for fuddy-duddies’: interest in moths booming as species struggle

  • Caroline Lucas speaking in the House of Commons

    Science Weekly podcast
    Caroline Lucas on climate, culture wars, and 14 years as the only Green MP

  • A person wearing the bionic leg walks up some stairs

    Medical research
    Bionic leg makes walking quicker and easier for amputees, trial shows

  • Matt Damon cultivating potatoes in Ridley Scott’s The Martian.

    Space
    Scientists find desert moss ‘that can survive on Mars’

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News

  • An orange-and-white sign for Eli Lilly outside their corporate headquarters in Indianapolis.

    FDA approves second Alzheimer’s drug that can slow onset of disease

  • Scientist working in a lab

    Top scientists turning down UK jobs over ‘tax on talent’, says Wellcome boss

  • A person passing an illuminated sign on a wall reading: 'IQOS - This changes everything'

    Tobacco giant accused of ‘manipulating science’ to attract non-smokers

  • Prince William and his children pose with Taylor Swift

    ‘Shaking it off’: the science of dad dancing – and why it’s good for you

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Coronavirus

  • A galaxy (Photograph: ESO/M. Kornmesser/PA Wire)

    A black hole awakens and why some people avoid Covid: the week in science – podcast

  • An electron microscope image of coronaviruses.

    Covid immune response study could explain why some escape infection

  • Natacha Gray sitting in her wheelchair.

    ‘A 30-second walk would exhaust me beyond reason’: Natacha’s life with long Covid

  • A child under a duvet in pyjamas

    Concern over children with long Covid and theories on its cause

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Opinion

  • TerraformMarspixie

    Earth is dying, you say? Whatever. Let’s build a Mars rocket!

  • Renée DiResta, former research manager of the Stanford Internet Observatory, testifies to the US Senate, 2018.

    Closing the Stanford Internet Observatory will edge the US towards the end of democracy

    John Naughton
  • John Naughton

    How’s this for a bombshell – the US must make AI its next Manhattan Project

    John Naughton
  • David Hone

    The super-rich are buying up dinosaur bones – and now they want our near-perfect Stegosaurus

    David Hone
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Science Weekly podcast

  • Insurrectionists with flags and red baseball hats, including QAnon conspiracist Jake Angeli, inside the US Capitol on 6 January 2021

    The surprising psychology behind extremism, and how politics is driving it – podcast

  • Close up of a lock on a toilet door featuring the word 'pain'

    The infection that affects half of women and its link to antibiotic resistance – podcast

    Madeleine Finlay speaks to Dr Jennifer Rohn, head of the centre for urological biology at University College London, about what we now understand about how urinary tract infections take hold, and the complexity surrounding their treatment
  • Sunrise over Walney Offshore Wind Farm off the Cumbrian Coast in the UK

    What are the main UK parties promising on climate and is it enough? – podcast

    Ian Sample is joined by the global environment editor, Jon Watts, and the biodiversity reporter, Phoebe Weston, to find out what the election manifestos have to say about nature and climate, and whether anyone is promising the level of action scientists are asking for.
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Key issues

  • Dr Joseph Cotter with the UK's first commercial quantum accelerometer for navigation.

    Physics
    ‘It’s the perfect place’: London Underground hosts tests for ‘quantum compass’ that could replace GPS

  • Woundcare and amputation in C. maculatus

    Biology
    Ants can carry out life-saving amputations on injured nest mates, study shows

    • Space
      Chinese space rocket crashes into hillside after accidental launch – video

    • Genetics
      ‘Weird and cool’: bilby genome sequence could help to save the species

    • Medical research
      FDA approves second Alzheimer’s drug that can slow onset of disease

    • Psychology
      All the rage: women are furious – and repressing it can ruin our lives

Alex Bellos's Monday puzzle

  • Observer Tech Monthly OTM gift guide Christmas Xmas November 2015. Tetris lights.

    Alex Bellos's Monday puzzle
    Did you solve it? Try this triple Tetris teaser

  • Tetris 1984

    Alex Bellos's Monday puzzle
    Can you solve it? Try this triple Tetris teaser

  • Close,Up,Of,Unrecognizable,Kids,Busy,Making,Diy,Robot,By<br>Close up of unrecognizable Kids busy making DIY robot by looking from digital tablet at home concept of Children robotic Experiment, togetherness, childhood learning and development; Shutterstock ID 2093624032; purchase_order: -; job: -; client: -; other: -

    Alex Bellos's Monday puzzle
    Did you solve it? Do you think like an engineer?

  • Pythagoras of Samos around 570 BC - 510 BC according to Metaponto in the Basilicata. Image shot 2012. Exact date unknown.<br>CW1WFW Pythagoras of Samos around 570 BC - 510 BC according to Metaponto in the Basilicata. Image shot 2012. Exact date unknown.

    Alex Bellos's Monday puzzle
    Can you solve it? Do you think like an engineer?

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Multimedia

  • Boeing's Starliner spacecraft lifts off carrying two Nasa astronauts to ISS – video

  • Gliese 12b is the size of Earth, or slightly smaller, like Venus. And its surface temperature is estimated to be a balmy 42C

    Australian student helps discover potentially habitable planet the size of Earth – video

    Gliese 12b is the size of Earth, or slightly smaller, like Venus. And its surface temperature is estimated to be a balmy 42C
  • A swirling purple and green aurora above silhouetted trees

    Northern lights illuminate skies in US and Canada – in pictures

    Rare sightings of aurora borealis in North America as atmospheric phenomenon fills overnight skies from California to Ontario
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