Russian Spacewalk Is Canceled Because of Coolant Leak

NASA and the Russian space agency have canceled a spacewalk for two Russian cosmonauts as they prepared to exit the International Space Station, due to an apparent coolant leak from an attached space capsule.

NASA's Johnson Space Center reported that neither they nor the other astronauts on the International Space Station are in danger, Sergey Prokopyev and Dmitry Petlin.

The astronauts donned space suits and depressurized the airlock when the leak appeared on a live video broadcast.

This is the second time that the two Russian cosmonauts have had to cancel a spacewalk.