There's no guarantee that the United States will be around 200 years from now.

I do celebrity ski races all over the world.

Russia perhaps is still entertaining the possibility that the moons of Mars might have access to ice or water.

We can't start over and develop a Saturn 5-type vehicle from scratch.

I'm sure the most favorite airplane in my career would still be the Sabre F86 cleft wing , which allowed me to be credited with 2 Russian-built Mig-15 destroyed during the Korean War. Where I was in 1953.

I think it's inevitable that there will be Earthlings establishing a presence on Mars. And I would say that it would certainly take place by 2050 or shortly thereafter.

As a student, I wrote English reports on science fiction.