The word supernova was coined by Walter Baade and Fritz Zwicky in 1931. It is pronounced /ËsuËpÉrnoÊvÉ/ with the plural supernovae /ËsuËpÉrnoÊviË/ or supernovas (abbreviated SN, plural SNe after supernovae).
The largest number of Vietnamese outside Vietnam is in Orange County, California (184,153, or 6.1 percent of the county's population), followed by Los Angeles and Santa Clara counties; the three counties accounted for 26 percent of the Vietnamese immigrant population in the United States.
The number of immigrants from Mexico and Europe living in the U.S. has actually declined slightly since 2010, but Mexicans still make up the largest immigrant population in the United States, with 11.6 million legal and illegal immigrants residing here.