The photo captures a structure that resembles a veil spread against the background of the starry sky. In fact, Hubble captured a small portion of the blast wave from a supernova in the constellation Cygnus, about 2,400 light-years away.

A supernova explosion is a phenomenon during which a star sharply increases its brightness. Such an explosion is accompanied by the ejection of a significant mass of matter from the outer shell of the star into interstellar space. During the explosion, the supernova envelope scatters in all directions, forming an expanding shock wave at a tremendous speed, which forms the supernova remnant.