The Veil nebula or Cygnus Loop, some 2500 light years away is an enormous region of diffuse gas emission, covering several degrees on the sky. - Credit: N. A. Sharp, REU program/AURA/NOAO/NSF
A Western Portion of the Veil Nebula (Cygnus Loop) - Credit: N. A. Sharp, REU program/AURA/NOAO/NSF
Who left the lights on ? Human activities...
The Trifid Nebula
Around the Veil Nebula, supernova remnant. The shattered remains of a supernova that exploded some 5-10.000 years ago. The Veil Nebula is located in the constellation of Cygnus, the Swan. It is about 1500 light-years away from Earth.
torace: i n s o m n i a (by Jay Daley)
Ghost-Like Nebula Revealed in Haunting Space Photo - The ghost-like nebula, IRAS 05437+2502, includes a small star-forming region filled with dark dust. Credit: NASA, ESA, Hubble, R. Sahai (JPL)