Detailed text transcripts for TV channel - DW - 20190722:09:25:00
New astronauts began a rigorous training program on board a modified air force jet to try to cope with the effects of weightlessness. the astronauts were pushed to their limits of their endurance because no one knew what dangers they might face in space it was a case of learning by doing. we choose to go to the just didn't do the other thing not be close they are easy but because they are. to help achieve this goal the u.s. space program developed the world's most powerful rocket. and did it without the use of sophisticated computer.