Three astronauts aboard the Shenzhou-10 spacecraft re-entered the orbiting Tiangong-1 space module after successfully completing a manual docking procedure on Sunday, according to the Beijing Aerospace Control Center.
A special lecture began Thursday morning, given by a teacher aboard a space module about 340 km above her students on Earth, the first such attempt by Chinese.
China successfully launched its fifth manned spacecraft late Tuesday afternoon, sending three astronauts on the country's longest space trip.
China will launch its fifth manned spacecraft Tuesday with three astronauts on board, a decade after its first astronaut entered space.
Two U.S. astronauts conducted an emergency spacewalk Saturday to inspect and replace a device believed to be the source of an ammonia leak in the orbiting laboratory's power system, U.S. space agency NASA said.
China's new spacecraft will be launched sometime between June and August, a spokesperson for the office of the country's space manned program said in a statement released Thursday.
Iranian Defense Minister Ahmad Vahidi said Monday that Iran took the first step to send man to space.
China successfully sent a Turkish Earth observation satellite named GK-2 into orbit with a Long March carrier rocket on Wednesday.