ESA mulls blasting Rosette probe with Russian launch vehicle
IRNA - Islamic Republic News Agency
Paris, Feb 29, Itar-Tass/ACSNA/IRNA -- Following two failures to lift off an Arianne-5 launch vehicle with the Rosette probe under a flight program to discover the secrets of the Churyumov-Geramisenko comet, the European Space Agency (ESA) is mulling over putting the probe into orbit with, among other versions, a Russian Proton carrier. A tile of the protective coating of the main engine stage separated in the Arianne-5 missile. This could happen during replacement of fuel after the first abortive attempt on launching on the night of February 24, ESA specialists reported. The missile was removed from the launch pad and is now at the assembly shed of the Courou cosmodrome in French Guiana. A launch with a departed tile could have put into jeopardy the launch vehicle and resulted in an explosion of its main engine, specialists claimed. The third attempt at lifting off for Arianne-5 is expected to be made on March 2. The probe is to come closer to the Churyumov-Gerasimenko comet and to land a descent module on its surface to study the chemical content of the comet`s core. But the two Arianne-5 failures prompted ESA specialists to look for other versions, including the Russian Proton carrier. The failures notwithstanding, Arianne-5 has still a chance to undertake seven fire-offs since the calculated trajectory fits into time limits before March 18. The comet now is in Jupiter`s orbit and travels at a speed of 100,000 kilometers per hour. Rosette is to reach the comet precisely at this point of the solar system exactly a decade later. /LS/210 End
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