A great question Austin however I think you are going to be a little bit disappointed by my friends answers.
What a way to hand over to me!
To think about gravity you have to think about the really big things. the gravity of the Earth pulls on the Moon and keeps it in orbit. The gravity of the Moon pulls on the Earth and causes the tides. So gravity doesn’t end when you leave the Earth. Austin, jump and you will fall a long, long way.
Those astronauts are falling all the time but because they are moving around the Earth the ground is constantly moving away from them. If there spaceship stopped moving around the Earth it will fall and hit the ground. (revised 10/09/16 -miscalculation 13/09/16 new animated gif)