After the Rosetta comet exploration mission was delayed due to problems with the Ariane 5 rocket, the spacecraft will now be sent to rendezvous with Comet Churyumov-Gerasimenko instead of the original target of Comet Wirtanen, the European Space Agency announced Thursday.

The spacecraft will be launched in February 2004 from Kourou, French Guiana, using an Ariane 5 G+ launcher. The rendezvous with the new target comet is expected in November 2014. The cost of the Rosetta launch delay is estimated at round 70 million euros (US$83 million).