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Will we ever know what the universe is made of?
CrowdScience
Apr 19, 2019

We are all made of particles – but what are particles made of? It’s a question that’s been perplexing scientists for centuries - for so long, in fact, that listener Doug in Canada wants to know if there’s a limit to how much they can ever discover.

CrowdScience heads out to CERN, in Switzerland, to find out. Birthplace of the internet, home to the Large Hadron Collider, and the site of the Higgs Boson’s discovery – the fundamental particle that is thought to give all other particles their mass, and one of the most important scientific finds of the 21st Century. But that revelation wasn’t an end to the quest – in fact, it has raised many more questions for the physicists and engineers involved. Dr David Barney, CMS, and Dr Tara Nanut, LHCb, tell us why.

And now they have announced that they are considering building a new, larger particle collider to find answers. The Future Circular Collider would be a hundred kilometres long and sited partly under Lake Geneva, smashing together sub-atomic particles at unprecedented energies in the hope of revealing the fundamental building blocks of all matter in the Universe. But any outcomes are by no means certain, and it could cost up to €29 billion. Perhaps physicists need to think completely differently about how to unpick what makes our universe – we see how one research team at Rutherford Appleton Laboratory near Oxford is doing just that, as they’re developing a collider that is not kilometres but centimetres long. Dr Charlotte Palmer, University of Oxford, tells us how.

However these fundamental questions are tackled, critics say that the money could be better spent on other research areas such as combating climate change. But supporters argue that its discoveries could uncover new technologies that will benefit future generations in ways we can’t predict. Anand Jagatia meets the scientists responsible to making this next giant leap into the quantum unknown.

(Photo: CMS experiment at CERN, Switzerland. Photo credit: CERN)

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May 8, 2026
How come sea levels are rising faster in some places than others?

As our oceans warm due to climate change, sea levels are rising. It ought to be straightforward – as water gets warmer, it increases in volume.

All the world’s oceans are connected, so how come sea levels are rising at different rates around the world, and even falling in some places? CrowdScience listener Alison in Australia wants to know the science behind the mystery.

 Presenter Anand Jagatia travels to the Philippines to investigate. The country is being particularly affected by the issue, with its more than 7,500 islands experiencing sea level rises that are double the global average.

On Palawan Island, in the east of the country, he speaks to people whose homes and livelihoods are being put at risk by rising waters.

He also visits the Philippine Coast Guard in Manila and speaks to Commander James Barandino, from their Marine Environmental Protection division, to hear how their work is being affected by sea level rises and the flooding it causes.

Dr Charina Lyn Repollo from the University of the Philippines Marine Science Institute shows Anand how they monitor sea levels at dozens of locations. Their data shows huge variations in sea level across the country. How can that be the case?

Anand also speaks to Jonathan Bamber, Professor of Earth Observation and Glaciology at the University of Bristol in the UK, to unpick the science behind how sea levels can rise at different rates in different places.

And how do we protect people from rising waters? Dr Rodel Diaz Lasco from the Oscar M. Lopez Center for Climate Change Adaptation and Disaster Risk Management in Manila, explains how global collaboration might hold the key.

Presenter: Anand Jagatia

Producer: Dan Welsh

Editor: Ben Motley

(Photo: Globe floating on water - stock photo- Credit: Jan Hakan Dahlstrom via Getty Images)


31min 24sec


Apr 24, 2026
Do animals hold funerals?

CrowdScience listeners Dougie and Molly have been wondering what happens to animals when they die, and whether there are animals that hold rituals to mark the passing of one of their kin.

Presenter Caroline Steel is on the case, trying to work out what happens to the bodies of animals when they die. Dougie and Molly say they rarely see animal carcasses where they live - so where do they all go?

Dr Sarah Perkins of Cardiff University in the UK runs a research project called Roadlab, which logs how quickly the bodies of animals killed by traffic disappear, and she thinks she might have a clue. Caroline joins her on a hunt through the undergrowth for animals, and answers.

And when animals lose a member of their flock, herd or school, do they indulge in rituals that look anything like a funeral? Caroline meets Dr Kaeli Swift, an ecologist at the University of Washington in the US, who has some surprising evidence from her research into bereaved crows.

Meanhile, in Botswana, Mathale ‘Metal’ Mosheti is a safari guide in Chobe National Park. The African Savannah Elephants there demonstrate some remarkable behaviour when another elephant dies. But do animals really grieve for their loved ones? Dr Barbara J. King, Emerita Professor of Anthropology at William & Mary University in the US, has some ideas. But is it enough to answer Dougie and Molly’s question?

Presenter: Caroline Steel

Producer: Tom Bonnett

Editor: Ben Motley

(Photo: Little red sick bird canary inside a wheelbarrow pushed by a lizard. Credit: Fernando Trabanco/Getty Images)


26min 28sec

Will we ever know what the universe is made of?

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