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2014-11-12 Wed 06:58
Rosetta mission controllers have made the first call to "Go" for an attempted landing on Comet 67P, the European Space Agency (ESA) announced in a webcast Tuesday.
If it succeeds it will be the first time a spacecraft has landed on a comet.
Scientists say there are still a few more key decisions to take in the coming hours before a planned separation of the landing craft Philae from the mother ship Rosetta on Wednesday.