Universe Puzzle No. 13

How did you do in last week’s Universe Puzzle? Did you figure out an answer, but didn’t write up your reasons why it was the best?

Do you enjoy these puzzles? What do you particularly like? Dislike? Would like to see changed? Would like to see more of? Let me know please!

Once again, this week’s puzzle requires you to cudgel your brains a bit and do some lateral thinking (five minutes spent googling likely won’t be enough). But, as with all Universe Puzzles, this is a puzzle on a “Universal” topic – astronomy and astronomers; space, satellites, missions, and astronauts; planets, moons, telescopes, and so on.

Say you’re at a friend’s place for a party. They’re playing some 60’s rock music, and a catchy song comes round. You wonder who the band is, and someone says “it’s the most famous 60’s band that you’ve never heard of!” (perhaps it’s Herman’s Hermits).

Well, this week’s Universe Puzzle is:

Who is the most famous astronaut you’ve never heard of?

And for ‘astronaut’ let’s include cosmonauts, taikonauts, and so on.

Be sure to explain your pick.

Update: answer posted below.

There certainly is not just one best answer!

You, dear commenters, are the judges: which of the answers below do you think is the best?

Universe Puzzle will be taking a bit of break, so there won’t be one next week. However, I really would appreciate your feedback: which of the 13 puzzles so far did you most like? which did you least like? what sort of puzzles would you like to see in future?