The story given in this image is simplified, but essentially correct. Sometimes, one must do a simple Google search (or in my case, pick up one of dozens of books on the various space programs sitting around the room) and read.
Until next time,
It’s finally a thing! SpaceX has successfully landed a rocket on a remote controlled barge. This is fantastic news for the future of a sustainable space program and the future of the human race beyond the confines of our planet.
Live long and prosper,