Now, two of the Shenzhou-21 crew clambered outside of the space station late Monday to inspect the damage to the window of the Shenzhou-20 capsule, as SpaceNews reports. The International Space Station, for instance, has to repeatedly fire its thrusters to avoid colliding with space junk. If everything goes according to plan, the damaged Shenzhou-20 spacecraft may one day get a new lease on life. Meanwhile, the remaining Shenzhou-21 crew members have the Shenzhou-22 capsule to rely on in case of an emergency. More on the incident: China Launches Emergency Mission to Its Space Station, Putting NASA to Shame