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Simple, if on the small scale of things. Beagle 2, the British-built Martian surface probe, lands on Mars perfectly on Christmas Day, 2003, sending back data and responding to commands? How would it affect Britains stance on space policy and their place in the ESA?

Oh, and yes, we know that Beagle 2 isn't a NASA rover, as claimed by Michael Bay's Transformers. Let's just get that out of the way and be done with that.
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