Poland was the fourth country to send one of its citizens to space in the 1970s. The first astronaut to do so, Mirosław Hermaszewski, crossed the Kármán line - an imaginary boundary separating Earth from space- on 28 June 1978.
Now, after nearly 47 years, the second Pole to complete such a mission, Sławosz Uznański-Wiśniewski, set off for the International Space Station (ISS), along with former NASA astronaut Peggy Whitson, Hungarian astronaut Tibor Kapu, and Indian astronaut Shubhanshu Shukla.