The Veil Nebula (also known as Cygnus Loop) was a supernova remnant in the constellation of Cygnus.
An image of the supernova remnant was on display in Astrometrics aboard the USS Voyager in the year 2374. (VOY: "Year of Hell")
The picture was one of several pictures, displayed in Astrometrics, taken by the Hubble Space Telescope.