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Science
LEADING EDGE
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Thursday 21:00-21:30
Leading Edge brings you the latest news from the world of science. Geoff Watts celebrates discoveries as soon as they're being talked about - on the internet, in coffee rooms and bars; often before they're published in journals. And he gets to grips with not just the science, but with the controversies and conversation that surround it.
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LISTEN AGAINListen 30 min
Listen to 19 April
PRESENTER
GEOFF WATTS
Geoff Watts
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Thursday 19 April 2007
Image of a fossil tree
The most complete example of the Giant Cladoxylopsid, one of earth’s earliest trees has been found in New York State

The first forests

The discovery of a 385 million year old complete fossil tree sheds light on the appearance of the world’s earliest forests.

Palaeobotanist Christopher Berry reveals more.

Minimising earthquake damage

Adam Crewe explains his extraordinarily simple method of reinforcing walls to make them proof against collapse during an earthquake.

In praise of water

Author Marcus Chown examines where we should be looking for signs of life as we do and don't know it.

Smart dust

News from this week's Royal Astronomical Society meeting in Preston on a new approach to planetary exploration.

Geoff speaks to Professor John Barker about tiny "smart" devices that can be borne on the wind like dust particles, and carried in space probes to explore other planets.

Uranus discoveries – old news?

Satellite technology scientist Stuart Eves re-evaluates whether astronomer William Herschel discovered the ring around our seventh planet as long ago as 1797?
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