Luca Christopher and Alan Duras walked along the walkway bridge designed specifically for the space shuttle.
They were the first foreign astronauts to board the "Tiangong" Space Station and the first group of foreign astronauts to take a ride on the H2 series of large space shuttles.
On March 17, the Qi Xinyuan Launch Site selected one of the three rockets in standby mode to launch "Vienna" to the Tiangong Space Station to dock with the "Cloud Palace" Core Module, serving as the future two fully tourist-accessible cabin segments.
At the same time, according to an agreement made more than a year ago, two Italian and French astronauts were also to enter the Tiangong Space Station after the launch of "Vienna" to conduct predetermined space science experiments.