I’m not sure there is such a thing as an “ordinary spacecraft”, but there certainly has never been a spacecraft like SpaceX’s BFR. The sheer audacity of someone trying this is balanced by the earnestness of the effort, and the whole process is fascinating to watch unfold. This article investigates some of the challenges SpaceX is facing.
“To be able to launch, refuel in orbit, endure months of flying through space, land on Mars, leave that planet, and safely return to Earth — then do all that over again — the BFR can’t be an ordinary spacecraft.”
SpaceX plans to fly a tourist around the moon in a new launch system called Big Falcon Rocket, or BFR: a giant spaceship and rocket designed for Mars.