Astronaut ice cream is sold at science-museum gift shops, Discovery Channel stores, and other places of that ilk for an exorbitant price. It's freeze-dried ice cream that comes in a brick-shape, usually in Neapolitan style, inside a vacuum-sealed foil pouch. The stuff's great! You break a little piece off, pop it into your mouth, and it instantly melts away into smooth ice-creamy goodness. It's almost as good as real ice cream... almost.

You can also get astronaut strawberries, astronaut pizza, and I've recently seen astronaut peaches. The ice cream variety is still my favorite.