How did the passion flower get its name? When the first Christian missionaries landed in South America in the sixteenth century, they found a plant which seemed to be a very good omen for the success of their mission. They called it the passion flower because they thought that it symbolised the death of Christ.
Astronauts actually grow 2 to 3 inches taller (5 to 8 centimeters) when they are in space! The stretching can cause them some pain; many astronauts have back pain while they are in space and the stretching can potentially injure nerves. Expedition 10 Crewmembers onboard the International Space Station.
As a result, it's easy to forget just how much the lack of gravity dictates life for today's space explorers. Motion sickness, difficulty remaining stationary and oriented, and bone and muscle deterioration are just a few of the problems astronauts can face.