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The Spitzer Space telescope, created by NASA to detect infrared radiation, [5] assisted in the location and identification of infrared dark clouds. The highly sensitive telescope was used to analyze the Milky Way and create numerous astronomical surveys at wavelengths that allowed for the detailed analysis of IRDCs.
Maggie is a vast cloud of hydrogen gas observed within our own Milky Way galaxy. It is a filament of hydrogen 3,900 light-years long and 130 light-years wide. It is a single coherent structure with all parts showing similar velocity with respect to the local standard of rest. It is one of the biggest structures within the Milky Way.
of sun-split clouds, — and done a hundred things You have not dreamed of – wheeled and soared and swung High in the sunlit silence. Hov’ring there, I’ve chased the shouting wind along, and flung My eager craft through footless halls of air.... Up, up the long, delirious, burning blue I’ve topped the wind-swept heights with easy grace.
Cosmic dust – also called extraterrestrial dust, space dust, or star dust – is dust that occurs in outer space or has fallen onto Earth. [ 1 ] [ 2 ] Most cosmic dust particles measure between a few molecules and 0.1 mm (100 μm ), such as micrometeoroids (<30 μm) and meteoroids (>30 μm). [ 3 ]
Glory around the shadow of a plane. The position of the glory's centre shows that the observer was in front of the wings. A glory is an optical phenomenon, resembling an iconic saint's halo around the shadow of the observer's head, caused by sunlight or (more rarely) moonlight interacting with the tiny water droplets that comprise mist or clouds.
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A Brocken spectre within glory rings. A Brocken spectre (British English; American spelling: Brocken specter; German: Brockengespenst), also called Brocken bow, mountain spectre, or spectre of the Brocken is the magnified (and apparently enormous) shadow of an observer cast in mid air upon any type of cloud opposite a strong light source.