Known Universe
Escaping Earth (3x7)
Ημερομηνία προβολής: Ιουν 16, 2011
We've landed on the moon, and launched probes to study planets hundreds of millions of miles away. But when it comes to space travel, were just babes in the woods. Of the hundreds of launches we've made into space, only a handful have even left Earths gravity.
So whats the problem? Well, for one, its a huge challenge just getting off the planet. If you want to get into space you have to fly fast and high. Find out just how tough and complicated future space travel can be.
- Πρώτη προβολή: Φεβ 2009
- Επεισόδια: 17
- Ακόλουθοι: 60
- Τελείωσε
- National Geographic
- Κυριακή στο 10