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Russia's Mars probe will crash to Earth in January

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[December 16, 2011]  MOSCOW (AP) -- A Russian spacecraft bound for a moon of Mars and stuck in Earth's orbit will come crashing back next month, but its toxic fuel and radioactive material on board will pose no danger of contamination, the Russian space agency said Friday.

Between 20 and 30 fragments of the probe with a total weight of up to 200 kilograms (440 pounds) will survive the fiery plunge and shower the Earth's surface, Roscosmos warned in a statement.

The agency said the unmanned Phobos-Ground spacecraft will plummet to Earth between Jan. 6 and Jan. 19, and the rough area of where the fragments could fall could only be calculated a few days ahead of its plunge.

While the agency had lost contact with the probe following its launch on Nov. 9, this was the first time acknowledged that the $170-million craft has been lost and will come crashing down.

Since its November launch the engineers in Russia and at the European Space Agency have attempted unsuccessfully to propel it away from Earths orbit and toward its target.

Phobos-Ground weighs 13.2 metric tons (14.6 tons), which includes 11 metric tons (12 tons) of highly toxic fuel. Experts had warned that if the fuel has frozen, some could survive entry into Earth and pose a serious threat if it falls over populated areas.

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But Roscosmos said it is sure that all fuel will burn on re-entry some 100 kilometers (330,000 feet) above the ground and pose no danger. It said that 10 kilograms (22 pounds) of Cobalt-57, a radioactive metal contained in one of the craft's instruments, will not pose a threat of radioactive contamination.

The failed mission was the latest in a series of recent Russian launch failures that have raised concerns about the condition of the country's space industries.

[Associated Press; By VLADIMIR ISACHENKOV]

Copyright 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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