Buzz Lightyear in space
Buzz blasts off into orbit around the Earth.
Orbit means travelling around a planet or a star.
The space shuttles that look like planes no longer travel into space. Astronauts now just travel in the Soyuz (say saw-yooz) spacecraft.
Buzz explains life on the space station
Buzz explains the experiments in space
In experiments a variable (say vair-ree-a-ball) means something you can change. Changing a variable can change what happens in an experiment.