China's first space lab module Tiangong-1 is scheduled to be launched between 9:16 p.m. and 9:31 p.m. Thursday, a spokesman for China's manned space flight project said on Wednesday.

The unmanned module will conduct docking experiments after entering orbit.

The Tiangong-1 was originally scheduled to be launched into low Earth orbit between Sept. 27 and 30. The launch was then rescheduled for Sept. 29 or 30 due to weather conditions.