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30 March 2015 Last updated at 14:22

Solar aeroplane heads for ChinaSolar Impulse takes off from Mandalay

Solar Impulse, the fuel-free aeroplane, heads out of Myanmar and on to China on leg five of its attempt to fly around the world.

Porpoise (c) Peter VeroogPorpoises use 'sound searchlights'

Porpoises finely adjust the size of the beams of sound they use to hunt - using sound like a searchlight to trap their prey, a study finds.

Kelly and KornienkoDuo begin year-long space trip

US astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko arrive for a 12-month tour of duty on the International Space Station.

Our Experts

Jonathan Amos Article written by Jonathan Amos Jonathan Amos Science correspondent

Martian water streaks present exploration challenge

The immediate reaction of many to Monday's Mars announcement from Nasa on the existence of liquid water flows will be to want to go and investigate them. But that is easier said than done.

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David Shukman Article written by David Shukman David Shukman Science editor

Plastic oceans: What do we know?

As England prepares to introduce a charge for plastic bags - long after many other countries - David Shukman catches up on the latest research into plastic in the oceans.

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Special Reports

Bloodhound carScience in 2015

The BBC's science team looks at what lies ahead in 2015

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Features & Analysis

Elsewhere on the BBC


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