Lessons for life on earth

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Media captionChris Hadfield: "It's not just the magnificence of what you're looking at from space, it's the desire to capture it so it's not lost"

So, astronaut and author Chris Hadfield swears he'd never dare sing David Bowie before he did THE Space Oddity video ... I don't know, but I still find it hard to believe!

Oh, and he changed the words too, so Major Tom makes it back safe and sound.

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