Shuttle astronauts taken aback by odd sighting in space

​If you're looking for proof of extraterrestrial life -- or just like a good government cover-up conspiracy -- you'll want to check out this video of the space shuttle Atlantis' final mission. The video shows three reflective bodies outside the shuttle -- which intrigued astronauts enough to discuss it with NASA's Mission Control. "Doesn't look like anything I've ever seen on the outside of the shuttle, that's for sure," one says. Is it "space junk" or suggestion of an alien life form? Check them out for yourself -- they first show up at 4:50 in the video.