Astronauts Sergei Prokopyev and Dmitry Aleksandrovich Petelin told about prolonged expedition on ISS

The astronauts who have established a record on stay on ISS, during expedition learned to print on 3D - the printer subjects for a life and even the spare part for the equipment. It only one of fifty experiments made at station. And still crew members managed to meet in an orbit of the 28 colleagues from the different countries. Mission was unexpectedly tightened for the whole year. The crew returned to Earth this week though had to in February. Today participants of expedition personally told about details of that emergency situation...