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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.
radioscience@bbc.co.uk
LISTEN AGAINListen 30 min
Listen to†2 October
PRESENTER
GEOFF WATTS
Geoff Watts
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Thursday 2 October†2003
Titan
Titan

The Glinting Lakes of Titan
Saturnís largest moon Titan fascinates planetary scientists because its thick smoggy atmosphere resembles that of the infant Earth. This week, radio astronomers announce the best evidence yet for the existence of lakes or perhaps seas of liquid methane and ethane on the satelliteís icy surface.

Antidote to Anthrax
Spurred by fears of terrorist uses of this deadly bacterium, the development of drugs to combat anthraxís toxin is well underway. At Stanford University, researchers are using automated x-ray crystallography and molecular modelling to devise and test a compound to neutralise the bacteriumís poison.

Filtering out foreign marine invaders
Marine biologists and engineers in Australia have devised a system for ships that filters the ballast water they carry from port to port. The filtration system should ensure that potential pest stowaways are never allowed to leave their home ports.

The anatomy of plug-hole vortex
Danish physicist Anders Andersen devised an experiment to work out the details of how water exits the bath. He revealed a mini-whirlpool of unexpected complexity where the water flows up as well as down.


Next week
Metal content in stars could help predict whether a star is likely to harbour planets nearby.
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