CrowdScience

BBC World Service

We take your questions about life, Earth and the universe to researchers hunting for answers at the frontiers of knowledge.

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504 episodes
Updated Friday

Episodes504

Newest first

Apr 19, 2024 · 26 min
Are our coastlines being washed away?
What is coastal erosion and why is it a problem?
Apr 12, 2024 · 32 min
How do my ears sense direction?
How can we hear a sound and immediately know where it’s coming from?
Apr 5, 2024 · 26 min
How many people have ever existed?
Listener Alpha in Sierra Leone asks us to count all the humans who have ever lived
Mar 29, 2024 · 27 min
Could climate change lead to more volcanic eruptions?
We head to New Zealand to ask how a hotter planet will affect volcanoes.
Mar 22, 2024 · 27 min
Do animals have anxious habits like us?
Why do we bite our nails - and do animals share similar habits?
Mar 15, 2024 · 29 min
Is the BMI fatphobic?
How useful is the Body Mass Index?
Mar 8, 2024 · 29 min
Do we all see the same colour?
Caroline Steel investigates what affects the way we see the colours of the world
Mar 1, 2024 · 27 min
How bad is our data for the planet?
What's the environmental impact of all the data we use?
Feb 23, 2024 · 28 min
Why do we have wisdom teeth?
Answering your questions about life, Earth and the universe
Feb 16, 2024 · 27 min
What time was the first clock set to?
From sundials to atomic clocks via Big Ben, a quest into the history of timekeeping.
Feb 9, 2024 · 27 min
When will the next earthquake hit?
Will we ever be able to predict earthquakes?
Feb 2, 2024 · 30 min
Why do we daydream?
Meandering into your wandering mind, why can’t we stay present?
Jan 26, 2024 · 26 min
How should we measure cleverness?
The CrowdScience team are tested to the limit to see how brainy they are.
Jan 19, 2024 · 26 min
Were humans ever semi-aquatic?
Was there a semi-aquatic period for humans as we’ve evolved?
Jan 12, 2024 · 26 min
Can planting trees solve the climate crisis?
Can we plant enough trees to soak up all the extra carbon we put into the atmosphere?
Jan 5, 2024 · 28 min
Will electric cars help solve noise pollution?
Will electric cars solve noise pollution?
Dec 29, 2023 · 26 min
2023 Year End Extravaganza, Part 2
Welcome to Part 2 of our year-end extravaganza, full of bonus content and stories
Dec 22, 2023 · 35 min
2023 Year-End Extravaganza, Part 1
It’s Part 1 of CrowdScience’s year-end extravaganza! Say hello to some familiar faces.
Dec 15, 2023 · 27 min
Are seeds alive?
How come a seed can do nothing for months, or even years, before bursting into life?
Dec 8, 2023 · 26 min
Where does our fat go when we exercise?
What happens to the fat in our bodies when we exercise?