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19 December 2014 Last updated at 10:47 ET

Nasa emails spanner into spaceMr Wilmore with the wrench

Astronauts on the International Space Station use a 3-D printer to make a wrench from instructions sent up in an email.


tornadoBirds 'fled day before US tornadoes'

Tracking data reveals that golden-winged warblers fled one day before the April 2014 US tornado outbreak, probably because they "heard it coming".

Dr Haruko ObokataStem cell scandal scientist resigns

A Japanese stem cell scientist at the heart of a scandal over false claims and fabricated research has resigned.

Our Experts

Jonathan Amos Article written by Jonathan Amos Jonathan Amos Science correspondent

Philae comet lander: Sleep well little probe

European Space Agency controllers will continue to listen for Philae in the days ahead, hopeful that the comet lander will somehow become active again.

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Matt McGrath Article written by Matt McGrath Matt McGrath Environment correspondent

Will Kerry strike gold at Lima climate talks?

As US Secretary of State John Kerry joins UN climate talks in Lima, we look at some of the hurdles on the path to an historic global deal.

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David Shukman Article written by David Shukman David Shukman Science editor

The largest vessel the world has ever seen

An enormous ship is being built to collect and liquefy gas at sea for the first time.

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Special Reports

67PComet landing

How scientists performed the first landing on a cosmic wanderer

Features & Analysis

Elsewhere on the BBC

Programmes

  • Science in Action Listen

    Conference topics include Arctic sea ice and exciting sounds from Mars

  • Click Listen

    Uber has been criticised for raising its tariff during the siege in Sydney

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