There are over 30,000 species of fish – that’s more than all the species of amphibians, reptiles, birds and mammals combined. But despite the sheer diversity of life on Earth, we still tend to think of all fish in roughly the same way: with an oblong scaley body, a tail and pairs of fins. Why? And is that really the case?
Crowdscience listener and pet fish ... Show More
Aug 15
How long does light last?
When listener Rob from Devon, UK, heard of a newly detected planet light years away, he was struck by the sheer scale the light must travel to reach us here on Earth. It got him wondering: How long does light last? What’s the oldest light we’ve ever observed? And does light ever ... Show More
26m 29s
Aug 8
Can we stop the rain?
CrowdScience listener Rit, from Pune in India, is staring out of his window at the falling rain. It’s been pouring for four days now, and shows no sign of stopping. The laundry is piling up, all his shoes are wet, and he’s worried about the effect it’s having on the environment, ... Show More
32m 21s
Oct 2020
Brian May's Cosmic Clouds 3-D; How fish move between waterbodies and Jim Al-Khalili's take on physics
There are few images as awe-inspiring as those of the deep cosmos. Photos of the stars, galaxies, constellations and cosmic nebulae are difficult to improve on, but a new book might have done just that, by making them stereoscopic. David Eicher, Editor-in-Chief of Astronomy Magaz ... Show More
36m 59s
Nov 2022
The Fish-Tetrapod Transition
Melvyn Bragg and guests discuss one of the greatest changes in the history of life on Earth. Around 400 million years ago some of our ancestors, the fish, started to become a little more like humans. At the swampy margins between land and water, some fish were turning their fins ... Show More
55m 33s
Nov 2022
The Fish-Tetrapod Transition
Melvyn Bragg and guests discuss one of the greatest changes in the history of life on Earth. Around 400 million years ago some of our ancestors, the fish, started to become a little more like humans. At the swampy margins between land and water, some fish were turning their fins ... Show More
55m 33s
Oct 2022
The final moments of DART
NASA’s latest mission, DART hit the headlines this week after the space agency’s satellite successfully collided with a far off asteroid. The mission acts as a demonstration of Earth’s first planetary defence system. Jon Amos, one of BBC’s Science correspondents, talks Roland thr ... Show More
53m 42s