Must be Orion's armpit

Space is a near vacuum.

This being the case, it seems odd that astronauts agree that it smells funny.

Speaking of odors, I learned back in early grammar school the unflattering origin of the name of the city where I grew up. Wikipedia explains it thus:

The name "Chicago" is the French rendering of the Miami-Illinois name shikaakwa, meaning “wild leek.” The sound shikaakwa in Miami-Illinois literally means 'striped skunk', and was a reference to wild leek, or the smell of onions. The name initially applied to the river, but later came to denote the site of the city.

Thus, the city of Chicago derives its name from its reputedly unpleasant odor. The Cubs have worked to maintain that tradition for over a century.

Neither does the city where I live now fare well in the name department. I knew about the Trappist monk theory of the origin of the name "Des Moines," but not about the other, more colorful theory Wikipedia mentions:

The origin of the name Des Moines is uncertain. The French "Des Moines" translates literally to "of the monks." "Rivière Des Moines" translates to "river of the monks," known today under the anglicized name of Des Moines River. However, the term could have referred to the river of the Moingonas, named after an American Indian tribe that resided in the area and built burial mounds. A hypothesis says that the name, if it is from the French language, refers to French Trappist monks, some of whom lived in huts at the mouth of the river. A more recent hypothesis uses a study of Miami-Illinois tribal names to say the word Moingona, one of the names given to the region, comes from word mooyiinkweena, a derogatory name which translates roughly to "the excrement-faces." The name was seemingly given to Marquette and Joliet by a tribal leader in order to dissuade them from doing business with a neighboring tribe.

Midwestern place names are nothing if not aromatic.

Photo courtesy U.S. Naval Observatory

ADDENDUM: Since I seem to be getting a lot of Google hits for "Orion's armpit" or variations thereupon (and especially since it also falls under the rubric of smelly names), I should perhaps point out that the star which forms Orion's armpit and about which people are presumably seeking information  is Betelgeuse, which is Arabic for (appropriately enough) "Armpit of the Great One."