Humans have been flying into space for many years thanks to NASA!  ๐
The first American in space was Alan Shepard, who flew aboard Freedom 7 in 1961.  โ
๏ธ Since then, astronauts have traveled to the International Space Station (ISS), a giant space lab orbiting Earth.  ๐
They live and work there, doing science experiments in a weightless environment!  ๐
Each mission lasts weeks or even months! Some famous astronauts include Sally Ride, the first American woman in space, and 
Chris Hadfield, known for his fun videos from the ISS.  ๐
These brave astronauts make amazing discoveries for everyone!