MOSCOW -- Russia's space corporation Roscosmos said Monday that a coolant leak from a Russian space capsule attached to the International Space Station doesn't require evacuation of its crew, but the agency kept open the possibility of launching a replacement capsule, if needed.The leak from the Soyuz MS-22 was spotted last week as a pair of Russian cosmonauts were about to venture outside the station on a planned spacewalk.Russian Mission Control aborted the spacewalk when ground specialists saw a stream of fluid and particles emanating from the Soyuz on a live video feed from space.Roscosmos said the crew used ventilators in the Russian segment to blow cold air into the capsule to reduce temperature in the cockpit to comfortable levels.“If the situation takes a different turn, we obviously have reserve options.”Along with Prokopyev, Petelin and Rubio, four other crew members are currently on the space outpost: NASA astronauts Nicole Mann and Josh Cassada; the Japan Aerospace Exploration Agency’s Koichi Wakata; and Anna Kikina of Roscosmos."