Astronaut Ernst Messerschmid returns to Spacelab - 25 years after the D1 mission
Drops of orange juice that transform into cubes, astronauts sliding back and forth on a sled in zero gravity, repeated glimpses of the blue globe below. The images that reached Earth from the D1 Spacelab mission are spectacular even today. The first German mission, it was launched on 30 October 25 y