Why is NASA ending the space shuttle program, and how can they stop?
The reason as to why NASA is ending its space shuttle program is to move to the next step in manned space flight. It is also planning to spend billions of dollars in order to encourage the development of commercial human spaceflight vehicles. The agency is also planning to invest in advanced space propulsion technology. You can visit http://www.voanews.com/english/news/NASA-Ending-Space-Shuttle-Missions-After-30-Years-Of-Flights--104033669.html for more information.
I don't know if this is true or not. But, I heard that they'll be working on and building a more technology advanced space shuttle. Which would be ready by 2030.
NASA intends to end the space shuttle program in 2010 to return astronauts to the moon in 2018.
What do you mean how can they stop? They just don't launch any more shuttles for a while.