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Metre
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Porphyrin
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Conglomerate
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Euhedral
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Desertification
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Fovea
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Heterotrophic
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Lymph
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Electron
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Pixel
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Hodgkin's disease
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Space-time
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Sidereal period
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Inhibition
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Glycosidic bond
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Cévenol episode
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Glaucoma
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Pear
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Milky Way
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Beta cells
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Neutrino
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PLED
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Tholin
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Disthene
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Wire drawing
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Replication
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Quantizing
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Microdiorite
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Maxwell equations
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Food bolus
M16
Messier 16 is an open cluster in the Serpens constellation, standing out from a background of diffuse nebulae. The stars in the cluster can be seen through a telescope, but the red clouds of the nebula require a long photo exposure time.
Photographed by "Chamois" (the person's pseudonym on the Futura-Sciences astro forum) using an exposure of 80 minutes on a CCD camera and a 200 mm telescope.
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