Huge waves are sculpted in this two-lobed nebula some 3000 light-years away in the constellation of Sagittarius. This warm planetary nebula harbours one of the hottest stars known and its powerful stellar winds generate waves 100 billion kilometres high. The waves are caused by supersonic shocks, formed when the local gas is compressed and heated in front of the rapidly expanding lobes. The atoms caught in the shock emit the spectacular radiation seen in this image.<\/p>\n
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Credit:<\/strong><\/p>\n <\/p>\n ESA<\/a>\u00a0& Garrelt Mellema (Leiden University, the Netherlands)<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":" This image from the NASA\/ESA Hubble Space Telescope shows Sh 2-106, or S106 for short. This is a compact star forming region in the constellation Cygnus (The Swan). A newly-formed star called S106 IR is shrouded in dust at the centre of the image, and is responsible for the surrounding gas cloud\u2019s hourglass-like shape and the turbulence visible within. Light from glowing hydrogen is coloured blue in this image.<\/p>\n <\/p>\n Note: This will be shipped as a rolled canvas in a tube. \u00a0We only have 1 in inventory. Continue reading