New method for 3-D printing extraterrestrial materials

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3-D printing with lunar and Martian dust-based inks presents a new, sustainable method for extraterrestrial manufacturing of soft and hard structures and objects.
via Science Daily
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Milky Way’s ionized hydrogen brought into focus

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Building on efforts to tease out a new and mostly hidden feature of our galaxy, astronomers have developed WHAM, a spectrometer capable of detecting the faint, diffuse light emanating from the space between the stars.
via Science Daily
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Earth Shadow over Damavand

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Through crystal clear skies this beautiful panorama follows the curve of planet Earth's shadow rising across the top of the world. The tantalizing twilight view is composed of eight single frames captured from 4,000 meters above sea level at sunset on April 6. Just above the dark grey Earth-shadow boundary lies a fading, pinkish, anti-twilight arch. Also known as the belt of Venus, its reddened and back-scattered sunlight finally merges with the still blue eastern sky. Standing tall near center along the rugged horizon line is the distant sharp peak of Mount Damavand in the snowy Alborz mountains. A feature in Persian mythology and literature, Damavand is a stratovolcano reaching 5,610 meters above sea level, the highest peak in Iran and the Middle East.

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