Whilst I got the impression that for him, it's all part of the day job - and let's face it, that's the reality - there was something incredibly vivid about his descriptions.
He casually told me about photographing Mount Kilimanjaro, pinpointing its tiny pinnacle on the horizon, (as you do,) and spotting Everest from the window of his space shuttle...
Although the recent months have been a turbulent time for NASA he was extremely inspirational, and having been rejected from the RAF in the early stages of his career, his achievements are proof that we can all overcome life's obstacles to pursue bigger and better things.
Reach for the stars peeps...