Astronaut: An astronaut is a person trained by a human spaceflight program to command, pilot, or serve as a crew member of spacecraft. They are like the star athletes on Team USA in our "Space Olympics" analogy.
Apollo Program: This was an American human spaceflight initiative by NASA aimed at landing humans on the Moon from 1961 to 1972. It’s like winning the gold medal event at our "Space Olympics."
Satellite: A satellite is an object that has been intentionally placed into orbit around Earth or another celestial body. These are like the equipment used by our athletes during different events at our "Space Olympics."