These Weird Red Arcs on Saturn's Moon Tethys Can't Be Explained
Red Streak on Tethys
August 4th, 2015
An icy moon of Saturn has mysterious red arcs of material crisscrossing its surface — and no one knows exactly how they got there.
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Kickstarter Launches to Build a Mini-James Webb Space Telescope
MesaTech James Webb Space Telescope Model
August 4th, 2015
As NASA gears up for the launch of its next great space telescope in 2018, a model-making team is asking for help to create miniature versions of the huge observatory for public outreach.
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Apollo Moon Rocket Engines Recovered by Amazon CEO Preserved for Display
Apollo F-1 Engine Parts Recovered
August 4th, 2015
Two and a half years after an expedition led by the CEO of Amazon.com raised them off the seafloor, the historic rocket engine parts that launched NASA astronauts on at least three missions to land on the moon are now preserved for museum display.
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They're Full of Stars! Students Find Densest Galaxies in the Universe
View from an Ultracompact Galaxy
August 4th, 2015
Undergraduate students at San Jose State University have identified the two densest galaxies ever found — and a new video simulation depicts how such tiny, dense groups of stars might form and encompass an oversize black hole.
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Saturn Moons Stare Up at Ringed Planet in Gorgeous New Photo
Saturn, Dione and Mimas
August 4th, 2015
The new image captures the satellites Dione and Mimas, with Saturn a blurry behemoth looming in the background. Sunlight is hitting the moons at such an angle that they seem to be staring up at the ringed planet.
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How Will NASA's New Horizons Mission to Pluto Be Remembered?
Pluto's heart, new horizons images
August 4th, 2015
The New Horizons spacecraft's flyby of Pluto on July 14 is revolutionizing researchers' understanding of the faraway dwarf planet. The epic encounter could also help spur future ambitious exploration missions, mission team members say.
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