TORONTO - Canadian astronaut Chris Hadfield is packing his bags as he wraps up his five-month mission aboard the International Space Station. Hadfield tweeted this morning that he “proudly” hands command of the station to Pavel Vinogradov, a Russian cosmonaut. He also tweeted that it’s “time to rev up the Soyuz” for the trip home. Plans call for Hadfield and two other crewmembers to leave the station Monday just after 7 p.m. E-T aboard a Russian Soyuz spacecraft. They’re due to land in Kazakhstan about three and-a-half hours later.

MIAMI (Reuters) - Two astronauts aboard the International Space Station took a hurriedly arranged spacewalk on Saturday to try to fix an ammonia leak in a cooling system on one of the station's solar arrays that provide electricity to the orbital outpost. The astronauts used a pistol-shaped screwdriver to remove a panel, install a spare pump and add new ammonia coolant, and were to spend several more hours outside the station troubleshooting the plumbing problem.

NASA astronauts on Saturday performed an emergency spacewalk to try to stop ammonia from leaking from the International Space Station's power system, NASA television showed. During the spacewalk, expected to last six and a half hours, flight engineers Tom Marshburn and Chris Cassidy will inspect and possibly repair the ammonia leak that affected the US segment of the orbiting laboratory on Thursday. "Spacewalk under way to repair ammonia leak," said the headline of a US space agency statement. Ammonia is used to cool the station's power system.

Moscow, May 6 (EFE).- Russia's space agency Roscosmos announced Monday that it has reached an agreement in principle with the Space Adventures company for British singer Sarah Brightman to travel to the International Space Station. The flight could take place in October of 2015," a spokesperson for Roscosmos told the Russian news agency Interfax. Brightman, 52, said last year that Roscosmos told her that she had successfully passed the medical and physical tests, after which she began training at the Yuri Gagarin Cosmonaut Training Center outside of Moscow.