Sat., July 16 at 9 p.m. ET
Repeats Sun., July 17 at 12 and 5 a.m. ET
Hosted by Jon Scott

More than two years after the Columbia accident and the grounding of the shuttle fleet, NASA is ready to fly again. NASA has accomplished a great deal. But, at what cost?

Join host Jon Scott this weekend as FOX News presents, "Discovery: Return to Space."

We'll examine why things went so wrong for the Challenger and Columbia missions. Did limited funds, limit dreams, put pressures on schedules and decisions that eventually affected safety? We'll examine both the Columbia and Challenger accidents and find out it wasn't just NASA's technology that was flawed.

Working and living in space: We'll get a private tour inside the orbiter and the International Space Station (search).

Plus, we'll take you inside the Russian space agency where the American-Russian partnership is plain to see.

And Eileen Collins (search), commander of the next mission, will tell us what NASA has done to make Discovery's space flight the safest of all.