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26 January 2015 Last updated at 21:37

Metal explosions 'driven by charge'alkali metal explosion

New high-speed video footage suggests that the classic chemistry explosion of an alkali metal in water is driven by positive charges repelling each other.


Extreme weather in 1998 was linked with La NinaRisk of extreme weather 'doubles'

Extreme weather arising from a climate phenomenon in the Pacific Ocean will get much worse as the world warms, according to climate modelling.

Polar bears in Alaskan refugeObama push to expand Alaskan refuge

President Barack Obama is to propose setting aside the majority of Alaska's national wildlife refuge as a wilderness area.

Our Experts

Jonathan Amos Article written by Jonathan Amos Jonathan Amos Science correspondent

Beagle2: Small margins between success and failure

It is some consolation to know that Beagle2 made it to the surface of Mars, but also deeply frustrating to realise that success was denied by such small margins.

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David Shukman Article written by David Shukman David Shukman Science editor

Should we try to halt extinction?

In an age when mankind can send robots to look for life on Mars, why can't science stop so many forms of life from being wiped out here on Earth?

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