Sputnik 1 was launched exactly 50 years ago. As a child, I used to listen to Dad - spellbound - teaching didi about the Sputnik. For a while I thought all satellites were Sputniks. I learnt that it was a proper noun a little later.
How magical those sessions were when I would abscond from regular studies (uh) just to assimilate a little of Dad's wisdom. I'm still in awe of his intellect.