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.
An astronaut's muscles can atrophy after time in space. Cosmic radiation: high-energy radiation that is emitted from the sun to all directions in space. Humans in space need some protection, especially during times of high solar activity. Countermeasure: a measure or action taken to counter or offset another one.