William ShatnerBeing a NASA astronaut is awesome enough on its own, but the crew of the Discovery shuttle got an extra dose of cool when their wake-up call was changed to the 'Star Trek' opening as read by William Shatner.

Shatner famously played Captain James Tiberius Kirk on the original 'Star Trek' television series, whose theme came in second place in a public vote to compile a Top 40 list for NASA's Song Contest. The top two songs with the most votes from that list earned a slot to wake Discovery's crew during its final mission.

Shatner also provided a special message to the crew of the space shuttle Discovery during the Flight Day 12 wake-up call today. Watch the wake-up call after the jump.