Star Trek technology that we use today

One of the greatest legacies of "Star Trek" is space travel.

When the show first premiered back in 1966, space travel was still a risky endeavor for mankind. However, a few years later man had walked on the moon.

Now, entrepreneur Richard Branson wants to use his space transportation company, "Virgin Galactic," to help send even every-day people into the final frontier.

Space travel is still a risky endeavor, however. One of Virgin Galactic's test flights recently ended in disaster killing its crew.