The Colours of an Exoplanet, Hunting sharks and Remote Internet Connection
Is it raining glass on a remote blue planet? Plus, how Thresher sharks use their tails to hunt and Overcoming internet access in remote and distant places.
The Hubble telescope has been peering into the depths of space to reveal the true colour of a planet orbiting another star. The exoplanet, called HD189733b, has a deep azure hue, which scientists think is the result of silicate (glass) rain in the atmosphere scattering blue light.
Stunning Hunting Sharks
Thresher sharks are partial to sardine meals and research shows that they stun their prey using their tails. But rather than connect directly, they use them like a bullwhip. The rapid tail slap isn’t always successful, but when it is numerous fish can be stunned at one time.
When Voices and Hearts Are in Tune
When choristers sing their voices harmonise and recent research has shown that their heart rates also synchronise. As we breathe in our heart rates increase and as we breathe out our heart rate slows so the heart rates of the singers follows the phrasing of the song.
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Chapters
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True colours of an exoplanet
The Hubble telescope reveals the true colours of a far-off planet
Duration: 03:30
Thresher sharks’ stunning hunts
We’ll hear why thresher sharks hunt by flicking their tails
Duration: 06:47
Getting connected in remote places
A New Zealand farmer talks of his experiences with Google’s Project Loon
Duration: 06:10
The science of superheroes
A Texas teacher has developed a series of videos looking at superhero powers
Duration: 06:55
Atomic clock
How atomic clocks are providing astonishing accuracy
Duration: 04:45
When hearts and voices synchronise
How singing helps regulate our heart beats
Duration: 03:50
Letting it all out
The diverse benefits of expressive writing
Duration: 07:22
Bacterial communication
Geoff Watts finds out how and why bacteria communicate
Duration: 10:44
Broadcast
- Sun 14 Jul 2013 14:06GMTÃÛÑ¿´«Ã½ World Service Online
Podcast
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