Private companies hold the key to space travel's future

Atlantis' journey to the International Space Station will be NASA's 135th and final mission in the space shuttle program, which began 30 years ago. Tune in at 8 and 11 p.m. ET Sunday for a documentary on the shuttle program on "CNN Presents: Beyond Atlantis."

There are no roller coasters near Truth or Consequences, New Mexico. No Ferris wheels, either.

Yet this desert town could soon be a hot destination for thrill-seekers from around the world.

That's because nearby, within New Mexico's high desert valley, is the future home of Spaceport America - the world's first commercial spaceport.

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