Germany: Sprouts did cause deadly E. coli outbreak

German vegetable sprouts caused the E. coli outbreak that has killed 31 people and sickened more than 3,000, investigators announced Friday after tracking the bacteria from patients in hospital beds to restaurants and then farm fields.

It's life, but not as the scientists of Nasa know it

It was one of Nasa's most intriguing messages: an invitation to a briefing where it would "discuss an astrobiology finding that will impact the search for extraterrestrial life". The event held on 2 December at Nasa's headquarters in Washington led to headlines around the world, including The Independent's "Science grapples with the concept that alien life may be among us".

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The miracle spray-on glass that stops the bugs

Alder Hey Children's Hospital in Liverpool is coating the toys in its wards with a revolutionary form of "liquid glass" that has proven in trials to reduce the number of disease-causing bacteria living on the surface of objects.

In mint condition: Can you cure halitosis in the sweet shop?

If you neglected to brush your teeth this morning, you're not alone. More and more of us are instead relying on an ever-increasing variety of breath-freshening products. But are the sugar-free confections on our shelves really an alternative to old-fashioned oral hygiene and the dreaded visit to the dentist? Nick Duerden investigates