Interesting thread, I'm sure you'll trigger quite a few responses.

For mine, I believe an image that has stayed with me since it happened was when Neil Armstrong stepped foot on the moon, way back on the 20th July 1969. Not so much a face to the human struggle more so a first time achievement for humankind. I was a young lad in primary school at the time and saw it live (in b & w) and even today marvel at what a great accomplishment it was. Apparently Mars is on shaky ground with a similar visit planned.

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