Astronauts and Nobel Winners

I was wondering if it's a bigger achievement to win a Nobel Prize or to become an astronaut.
Hundreds of people have won the Nobel Prize while only a dozen astronauts have landed on the Moon and two dozen in all have left Earth orbit.

Even the total number of astronauts who have been to space numbers in the hundreds -- I guess, in time, space travel will become commonplace once the technology for that is developed and then rocket travel might become as common as air travel.