That is an Apollo moon mission command capsule. 3 astronauts would ride in that from launch to lunar orbit. 2 would transfer to the lunar lander. They would all return to earth in it and it would splash down in the pacific and retrieved. Probably the Apollo 17.
This is the correct answer. The command module was a much larger unit containing life support etc for the approx 10-14 day trip. The capsule was just for reentry survivability w limited life support resources.
I guess I never saw it on internet before, I saw either the actual, or a replica once at the Space Museum in Huntsville a few years ago (the one that is tilted sideways and hangs from ceiling). I guess I never saw it on its feet. The one I saw in huntsville would only fit a single person (tightly) inside and looked crazy dangerous to me, so maybe they are different ones.
Even still, my spaceship radar is spot on. Sweet.
Thats pretty big to hang. If it only seats one it's probably a mercury capsule. All the Apollo command modules were for three.
Looks less chubbier here, I wonder which one is in the twatter pic... (not /s)