SUMMARY: The launch of the European Space Agency's Rosetta spacecraft was delayed for 24-hours because of high winds at the launch site at Kourou, French Guiana. The Ariane 5 rocket is now due to lift off on Friday morning at 0736 UTC (2:36 am EST). Rosetta has a launch instant, not a launch window. This means that it has to get off the launch pad within a few seconds, or it needs to be delayed for a full day. The spacecraft has until May 17 to fly in order to reach Comet 67P/Churyumov-Gerasimenko by 2014; otherwise, controllers will need to choose a new target.

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