Deep in the Milky Way constellation of Scorpius (The Scorpion) lies the War and Peace Nebula, or NGC 6357. This is a vast region of space where new stars are born in of chaotic clouds of gas and dust.
The outer parts of the vast nebula were recently imaged by ESO’s Very Large Telescope (VLT), producing the best picture of this sector snapped thus far.
The new picture shows a broad river of dust across the centre that absorbs the light from more distant objects. To the right there is a small cluster of brilliant blue-white young stars that have formed from the gas. These are probably only a few million years old, very young by stellar standards. The intense ultraviolet radiation streaming out from the stars is hollowing out a cavity in the surrounding gas and dust and sculpting it in strange ways.
The whole image is covered with dark trails of cosmic dust, but some of the most fascinating dark features appear at the lower right and on the right hand edge of the picture. Here, the radiation from the bright young stars has created curious elephant trunk columns, similar to the famous “pillars of creation” in the Eagle Nebula.
It should be noted that cosmic dust is much finer than the more familiar domestic variety – as it more closely resembles smoke and consists mostly of tiny particles of silicates, graphite, and water ice produced and expelled into space by earlier generations of stars.
The bright central part of NGC 6357 contains a cluster of high-mass stars whose inhabitants are among the brightest in our galaxy. This inner region, not seen in this new picture, has also been extensively studied and imaged by the NASA/ESA Hubble Space Telescope.
