The Guardian's Science Weekly

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Episodes

Date Title & Description Contributors
2025-03-25

  Where do our early childhood memories go?

It’s a mystery that has long puzzled researchers. Why can’t we remember our early childhood experiences? Freud called the phenomenon infantile amnesia, and for many years scientists have wondered whether it’s a result of failure to create memories or j...
  The Guardian author
2025-03-20

  What a dark energy discovery means for the fate of the universe

Dark energy, the mysterious force powering the expansion of the universe, appears to be weakening over time, according to a major cosmological survey that has thrown the laws of modern physics into doubt. Ian Sample tells Madeleine Finlay how this new ...
  The Guardian author
2025-03-18

  A mysterious millionaire and the quest to live under the sea – podcast

Before billionaires dreamed of setting up communities on Mars, the ocean was seen as the next frontier in human habitation. Reviving this dream is Deep, a project backed by an anonymous millionaire to the tune of more than £100m that aims to establish ...
  The Guardian author
2025-03-13

  Use it or lose it: how to sharpen your brain as you age

Many of us believe that cognitive decline is an inevitable part of ageing, but a new study looking at how our skills change with age challenges that idea. Ian Sample talks to Ludger Wößmann, a professor of economics at the University of Munich and one ...
  The Guardian author
2025-03-11

  Mars-a-lago? Did the red planet once have sandy beaches?

The Mars we know now is arid and dusty, with punishing radiation levels. But, as science correspondent Nicola Davis tells Madeleine Finlay, two new studies add weight to the idea that billions of years ago the red planet was a much wetter place. Nicola...
  The Guardian author
2025-03-06

  Moon missions, Musk v scientists, sperm and longevity

Madeleine Finlay and Ian Sample discuss three intriguing science stories from the week. From two private moon landings to the controversy over Elon Musk’s continued membership of the Royal Society, and a new study making a link between men’s health and...
  The Guardian author
2025-03-04

  Why it’s boom time for beavers in England

Beavers were once abundant in the UK, but hunting them for their fur, meat and scent oil drove them to extinction. Now they’re back, with the news that the release of beavers into English waterways is to be allowed for the first time in centuries. To u...
  The Guardian author
2025-02-27

  Drinks cans and chicken bones: will ‘technofossils’ be humanity’s lasting legacy?

When the palaeontologists of the future search for clues to understand how we lived, what might they find? Two scientists exploring this question have suggested that ‘technofossils’ will be our lasting imprint on the Earth. To find out exactly what the...
  The Guardian author
2025-02-25

  How Trump unleashed chaos in science

In his first month in office the US president has thrown science in the US into chaos, delaying projects and casting the future of research funding and jobs into doubt. To understand everything that has happened in the month since he took office and wh...
  The Guardian author
2025-02-20

  Singing mice, constipated kids and nurture beats nature: science stories of the week

Science editor Ian Sample joins co-host Madeleine Finlay to discuss some of the most intriguing science stories of the week. From a concerning rise in hospital diagnoses of constipation in children, to research suggesting that the environment is far mo...
  The Guardian author