Watch Chris Hadfield's TED talk about dealing with danger in space

We've heard a lot from Canadian astronaut Chris Hadfield (for free) over the past year.

TED2014 attendees paid $7,500 each, in part, to watch the former International Space Station commander take the stage.

His presentation ("What I learned from going blind in space") includes footage of a space shuttle launch. Yes, he also pulls out that damn guitar and plays you-know-what.

If inspirational spacemen aren't your speed, NSA whistleblower Edward Snowden's talk from TED2014 is also up.