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US astronauts begin space walk to fix ammonia leak on ISS

NASA said the astronauts will spend about six and a half hours outside the station
Photo EPA/ITAR-TASS
Photo EPA/ITAR-TASS

WASHINGTON, May 11 (Itar-Tass) - U.S. astronauts Chris Cassidy and Tom Marshburn have begun a space walk to fix an ammonia leak on the International Space Station (ISS).

The astronauts will visually examine the outer surface of the station where the leak has been registered and try to fix the problem.

NASA said the astronauts will spend about six and a half hours outside the station.