The dream of space tourism is alive and well. SpaceX announced the Inspiration4 mission on Monday, calling it "the world's first all-commercial astronaut mission to orbit." A Dragon spacecraft with four people aboard could launch before the end of 2021 on a Falcon 9 rocket. Jared Isaacman, billionaire founder of payment processor Shift4 Payments, will bankroll the trip and be the mission commander. He has quite a bit of flight experience closer to Earth as a former member of the aerial acrobatics Black Diamond Jet Team. Isaacman is donating the three other seats "to individuals from the general public." SpaceX said it will provide the astronaut training, which will involve "emergency preparedness training, spacesuit and spacecraft ingress and egress exercises, as well as partial and full mission simulations." "This mission enables access for everyday people who dream of going to space," SpaceX tweeted on Monday. This mission enables access for everyday people who dream of going to space