Watch it again: Chinese astronauts do spacewalk outside space station

Astronauts currently in China's space station core module are doing a spacewalk for the second time.

The three Chinese astronauts have been working and living in orbit for two months. They were sent into space on board the Shenzhou-12 spaceship and entered Tianhe on June 17.

The Shenzhou-12 space flight is China's seventh crewed mission to space and the first during the construction of the country's space station. It is also the first in nearly five years after the country's last manned mission.

The three astronauts are commander Nie Haisheng, a 56-year-old veteran who participated in the Shenzhou-6 and Shenzhou-10 missions; Liu Boming, 54, who was part of the Shenzhou-7 mission; and Tang Hongbo, 45, who is on his first space mission.