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Philae comet lander finally wakes up 'from hibernation'

The Philae lander which lost power after making its historic landing on a comet has finally woken up and contacted the European Space Agency.

The comet probe had been "asleep" since November after its batteries ran out and scientists were unable to recharge it as Philae lay in the shadow of a crater wall.

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Professor says she's 'in tears again' at Philae news

The professor who cried with excitement on finding out Philae had successfully landed on a comet has said she is "in tears again" after it woke up.

Professor Monica Grady of the Open University, who worked on the project, wrote on Twitter:

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