The jellyfish were launched on the rocket STS-40, in the Space Life Science-1 (SLS-1) on June 5th 1991. The experiment was led by a researcher named Dorothy Spangenberg and lasted nine days. One of the purposes of this mission was to investigate the consequences of the body’s adaptation to microgravity and readjustment to Earth’s gravity.
This reminded me of The Expanse TV series, where one of the main characters from Earth, has a scene where they have someone born in space (Belter) hung up on a wall with their arms resting over metal hooks under their armpits - basically letting their lack of adjustment to the Earths atmosphere do the dirty work for them.