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Science

  • Anthonys poison arrow frog, a tiny brown frog with light blue stripes, sits on a leaf

    Poison
    What is dart frog toxin, which is said to have been used to kill Alexei Navalny?

    Epibatidine is about 100 times more potent than morphine, and derived from frogs native to South America
  • A pharmacist displays a box of Wegovy pills

    Weight-loss drugs
    How switch from injections to pills is expanding big pharma’s hopes

  • four astronauts in uniform smile and wave as they go down stairs

    Nasa
    Four new astronauts arrive via SpaceX rocket at International Space Station

  • A skater cast a shadow on the ice

    Weatherwatch
    The surprisingly complex science of ice skating

  • A dam wall with mountains in the background.

    China
    Yangtze River shows signs of remarkable recovery after fishing ban

  • Doyne Farmer speaking at an event

    Beyond growth
    Economics has failed on the climate crisis. This complexity scientist has a mind-blowing plan to fix that

  • Observation of the Planet Alignment in North CarolinaSPARTA, USA - JANUARY 25: A long awaited astronomical event dubbed as the planet parade or planetary alignment when four planets are visible to the naked eye on the evening sky, Saturn and Venus as they move along the ecliptic, the solar system's disc in Sparta NC, United States on January 25, 2025 (Photo by Peter Zay/Anadolu via Getty Images)

    Space
    Six planets line up for rare parade throughout February

News

  1. Male feet on glass scales

    Intermittent fasting no better than typical weight loss diets, study finds

  2. Young woman stands on ladder in front of a wall of books while searching for a book in library

    Reading and writing can lower dementia risk by almost 40%, study suggests

  3. close-up of a pair of gloved hands holding a syringe

    Top US medical body to review vaccine effectiveness as government ‘abdicates’ responsibility

  4. A person with headlamp observing the Milky Way Galaxy on a clear night at the Valle de La Luna in San Pedro de Atacama, Chile.M2AH0M A person with headlamp observing the Milky Way Galaxy on a clear night at the Valle de La Luna in San Pedro de Atacama, Chile.

    Astronomers celebrate cancellation of $10bn Chile project that threatened clearest skies in the world

Opinion

  1. Elle Hunt

    Why is monogamy in crisis? The animal kingdom could give us some clues

    Elle Hunt
  2. Adrian Chiles

    Things reek, stink and pong – but why are there no verbs for describing a delightful odour?

    Adrian Chiles
  3. Donna Lu

    Breathwork has its uses – but when it comes to ‘unlocking your fullest human potential’, beware the puffery

    Donna Lu
  4. Madeline Horwath on the mistakes of evolution – cartoon

    Madeline Horwath on the mistakes of evolution – cartoon

Science Weekly podcast

  1. Jeffrey Epstein and Noam Chomsky on a plane
    Science Weekly

    Jeffrey Epstein and the scientists – podcast

    Podcast18:02
  2. The picture of the concrete arch covered in quaggas is taken by Stephan Jacquet, INRAE. It is an old culvert.
    Science Weekly

    ‘Everything is quagga mussel now’: can invasive species be stopped? – podcast

    Podcast16:11
  3. Testosterone pack made by Testogel
    Science Weekly

    Why are women turning to testosterone? – podcast

    Podcast15:40
Paid content
About

Paid content is paid for and controlled by an advertiser and produced by the Guardian Labs team.

Learn more about Guardian Labs content
  • An electricity pylon of the National Grid in Wales

    From pylons to plug sockets
    What makes up the UK’s electricity grid?

  • wind turbine in rural setting at dawn

    Upgrading the grid
    The great energy transition in numbers

Paid for by
This content was paid for by Iberdrola and produced by the Guardian Labs team.Iberdrola

Key issues

  • Winter arrives. Heriot-Watt University Physics Department’s Cairngorm Automatic Weather Station. The Automatic Weather Station is situated on the summit of Cairn Gorm and provides temperature and wind data every half hour, the data is uploaded to a website regularly. Walkers and skiers enjoying the fabulous snowy weather on the summit of Cairn Gorm. Cairn Gorm (Scottish Gaelic: An Càrn Gorm) mountain in the Scottish Highlands. In the Cairngorms range and wider Grampian Mountains. Height 1,245 m (4,085 ft) above sea level, Cairn Gorm is classed as a Munro and is the sixth-highest mountain in the British Isles. Strathspey, Scotland UK 22/11/2025© COPYRIGHT PHOTO BY MURDO MACLEODAll Rights ReservedTel + 44 131 669 9659Mobile +44 7831 504 531Email: m@murdophoto.comSTANDARD TERMS AND CONDITIONS APPLY See details at http://www.murdophoto.com/T%26Cs.html No syndication, no redistribution. A22U4Y, sgealbadh, A22R4S

    Physics
    Funding cuts will devastate the next generation of scientists

  • A dam wall with mountains in the background.

    Biology
    China’s Yangtze River shows signs of remarkable recovery after fishing ban

  • four astronauts in uniform smile and wave as they go down stairs

    Space
    Four new astronauts arrive via SpaceX rocket at International Space Station

  • illustration of three cherries, two of which appear to be blowing kisses at each other while the other sheds a tear.

    Genetics
    Are we hard-wired for infidelity?

Alex Bellos's Monday puzzle

  • Studio Publicity Still from This is Spinal Tap Christopher Guest © 1983 Embassy All Rights Reserved File Reference # 31708058THA For Editorial Use OnlyPM89AP Studio Publicity Still from This is Spinal Tap Christopher Guest © 1983 Embassy All Rights Reserved File Reference # 31708058THA For Editorial Use Only

    Alex Bellos's Monday puzzle
    Did you solve it? The numbers all go to 11

  • One louderMarshall amp. "The numbers all go to eleven ... it's one louder!" - Nigel Tufnel, Spinal Tap lead guitarist

    Alex Bellos's Monday puzzle
    Can you solve it? The numbers all go to 11

  • People grabbing slices of pizza, overhead viewGettyImages-200386947-001

    Alex Bellos's Monday puzzle
    Did you solve it? Are you cut out for these puzzling slices?

  • Cheesecake slice on a knifeRemoving a slice of the cheesecake with the help of a knife, the dessert is on a plate and on a plaid sideboard, all on the rustic wooden table. This dessert is not typical of Brazil, but is very appreciated by the Brazilian people.São Paulo, Brazil.

    Alex Bellos's Monday puzzle
    Can you solve it? Are you cut out for these puzzling slices?

Multimedia

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Most viewed in science

  1. Intermittent fasting no better than typical weight loss diets, study finds

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  3. What is dart frog toxin, which is said to have been used to kill Alexei Navalny?

  4. Four new astronauts arrive via SpaceX rocket at International Space Station

  5. Six planets line up for rare parade throughout February

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