Acronym Soup: NOYB?

Questions

while rain was falling on the street, guards atop the building alongside it were having a snowball fight on nov 13 1958. what was this building?

where was the immense fireball that flattened a 12 mile radius of pine forest, and was though to be an alien weapon in 1908?

who is was the chief rocket scientist on the american moon project and a notable export from the third reich?

what is the highest military honour that can be conferred in the usa?

the name of the first manned capsule in space?