January 20, 2014 | Corrinne

Today's a big day for comet-chasers. At 10.00 GMT, if all went well, the Rosetta probe should have been woken by an on-board alarm clock. 

The probe was launched ten years ago to meet with the snappily named Comet 67P/Churyumov-Gerasimenko. It's been sleeping for the last two-and-a-half years, in an attempt to conserve power.  

Right now, it should be busy testing its systems. And then it'll be all go until it meets the comet in August. I'll be keeping a keen eye on its progress...

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Rosetta

Some time this evening Earth should receive Rosetta's 'I'm awake' signal.

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Image: Flickr/DLR German Aerospace Center

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