China is gearing up to launch the Shenzhou 23 mission to the Tiangong space station, expected to take place as early as Sunday. This mission will see a fresh crew heading to space to relieve astronauts who have been in orbit for an extended period. The Long March 2F rocket, measuring 203 feet long, has been transported to the launch pad at the Jiuquan Satellite Launch Center in the Gobi Desert in preparation for the upcoming launch.

Teams conducted a pre-launch rehearsal to ensure that all facilities and equipment at the launch site are in optimal condition. The China Manned Space Agency (CMSA) confirmed the readiness of the site ahead of the mission, which will involve sending the next trio of astronauts to Tiangong for a six-month stay. While the crew for the Shenzhou 23 mission has not been disclosed, the astronauts will be introduced to the press at Jiuquan prior to the launch.

The astronauts underwent medical tests and other preparations on Wednesday in readiness for their upcoming mission. China has yet to announce the exact time and date for the launch but has indicated that it will occur "at an appropriate time in the near future." However, based on airspace closure notices, the launch is anticipated to take place around 11:10 a.m. EDT on Sunday.

This significant mission could mark a historic moment for China as one of the astronauts might embark on a year-long spaceflight, a first for the country. The subsequent Shenzhou 24 mission is expected to involve a Pakistani astronaut visiting Tiangong, further underscoring China's foray into international space collaboration.