Cygnus Loop Nebula Wall Art including Frame PopSocket Credit: NASA/ESA

Credit: NASA/ESA

this is no ocean

ParisDidedrot) for the HOBYS key programme

As the surface of the bubble's shell expands outward

green to hydrogen

Cygnus Loop Nebula Wall Art including Frame PopSocket Credit: NASA/ESAWispy tendrils of hot dust and gas glow brightly in this ultraviolet image of the Cygnus Loop nebula, taken by NASA's Galaxy Evolution Explorer. The nebula lies about 1,500 light years away, and is a supernova remnant, left over from a massive stellar explosion that occurred between 5,000 to 8,000 years ago. The Cygnus Loop extends over three times the size of the full moon in the night sky, and is tucked next to one of the "swan's wings" in the