Three Chinese astronauts arrived Wednesday at the country’s space station as part of a six-month mission that includes the station’s first in-orbit crew rotation.

The astronauts are replacing three others who have been at the Tiangong station since early June.

China docked the last of the station’s three modules earlier this month and astronauts are working on the final phases of the construction process.

China plans to launch a powerful space telescope next year.

Some information for this report came from The Associated Press and Agence France-Presse.
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