Cosmic Recycling

Dominating this image is part of the gigantic nebula Gum 56, illuminated by the hot bright young stars that were born within it.

For millions of years stars have been created out of the gas in this nebula, material which is later returned to the stellar nursery when the aging stars either expel their material gently into space or eject it more dramatically as supernova explosions.

This image was taken with the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile as part of ESO’s Cosmic Gems programme.

The Triffid Nebula (M20)

Located 5000 lightyears from us in the constellation of Sagittarius, the Triffid Nebula is a grand illustration of three types of nebula: Dark Nebula scattered around the front, Emission Nebula behind it glowing a warm red, and Reflection Nebula surrounding it all in a cloak of blue

Magnetic wormhole connecting 2 regions of space created for the first time
Barcelona, Spain (SPX) Sep 04, 2015
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“Wormholes” are cosmic tunnels that can connect two distant regions of the universe, and have been popularised by the dissemination of theoretical physics and by works of science fiction like Stargate, Star Trek or, more recently, Interstellar. Using present-day technology it would be impossible to create a gravitational wormhole, as the field would have to be manipulated with huge amounts
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NASA Astronomy Picture of the Day 2015 September 4 

Milky Way with Airglow Australis 

After sunset on September 1, an exceptionally intense, reddish airglow flooded this Chilean winter night skyscape. Above a sea of clouds and flanking the celestial Milky Way, the airglow seems to ripple and flow across the northern horizon in atmospheric waves. Originating at an altitude similar to aurorae, the luminous airglow is instead due to chemiluminescence, the production of light through chemical excitation. Commonly captured with a greenish tinge by sensitive digital cameras, this reddish airglow emission is from OH molecules and oxygen atoms at extremely low densities and has often been present in southern hemisphere nights during the last few years. On this night it was visible to the eye, but seen without color. Antares and the central Milky Way lie near the top, with bright star Arcturus at left. Straddling the Milky Way close to the horizon are Vega, Deneb, and Altair, known in northern nights as the stars of the Summer Triangle.