Space NASA Image of the Day

Pluto as seen from New Horizons on July 11, 2015

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One million miles to go; Pluto is more intriguing than ever! (More at NASA Picture of The Day)
 
STEREO-A Spacecraft Returns Data From the Far Side of the Sun

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This image of the sun was taken on July 15, 2015, with the Extreme Ultraviolet Imager onboard NASA's Solar TErrestrial RElations Observatory Ahead (STEREO-A) spacecraft, which collects images in several wavelengths of light that are invisible to the human eye. This image shows the sun in wavelengths of 171 angstroms, typically colorized in blue. (More at NASA Picture of The Day)
 
Frozen Carbon Monoxide in Pluto’s 'Heart'

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Peering closely at the “heart of Pluto,” in the western half of what mission scientists have informally named Tombaugh Regio (Tombaugh Region), New Horizons’ Ralph instrument revealed evidence of carbon monoxide ice. The contours indicate that the concentration of frozen carbon monoxide increases towards the center of the “bull’s eye.” (More at NASA Picture of The Day)
 
NASA’s New Horizons Finds Second Mountain Range in Pluto’s ‘Heart’

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Pluto’s icy mountains have company. NASA’s New Horizons mission has discovered a new, apparently less lofty mountain range on the lower-left edge of Pluto’s best known feature. (More at NASA Picture of The Day)
 
Smoke Over the Greenland Sea

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The 2015 wildfire season in the Arctic has been very intense – and very smoky. As of July 15, over 3,190,000 acres had burned across Canada, according to Natural Resources Canada. According to the National Oceanic and Atmospheric Administration (NOAA), more than 600 fires had burned millions of acres in Alaska as of July 7. (More at NASA Picture of The Day)
 
Soyuz Rocket Boosts Expedition 44 Crew to the International Space Station

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The Soyuz TMA-17M launched from the Baikonur Cosmodrome in Kazakhstan to the International Space Station at 5:02 p.m. EDT (3:02 a.m. on July 23 Baikonur time). (More at NASA Picture of The Day)
 
July 23, 1999, Chandra X-ray Observatory Awaits Deployment

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This 70mm frame shows the 50,162-pound Chandra X-ray Observatory before it was tilted upward for its release from the Space Shuttle Columbia's payload bay on July 23, 1999, just a few hours following the shuttle's arrival in Earth orbit. Chandra was spring-ejected from a cradle in the payload bay at 6:47 a.m. Central time. (More at NASA Picture of The Day)
 
Pluto Dazzles in False Color

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Four images from New Horizons’ Long Range Reconnaissance Imager (LORRI) were combined with color data from the Ralph instrument to create this enhanced color global view of Pluto. (More at NASA Picture of The Day)
 
Activity at Klyuchevskoy Volcano

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This photograph, taken on May 4, 2015 by an astronaut onboard the International Space Station, highlights one of the most active volcanic regions on Earth: the Kamchatka Peninsula in far eastern Russia. The three largest volcanoes visible at image center include Kliuchevskoy, Bezymianny, and Ushkovsky. (More at NASA Picture of The Day)
 
Round of Testing Completed on Webb Telescope Flight Mirrors

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This July 11, 2015 photograph captures one of the final, if not the final, James Webb Space Telescope flight primary mirror segments to be processed through NASA Goddard Space Flight Center's Calibration, Integration and Alignment Facility (CIAF). (More at NASA Picture of The Day)
 
Frosty Gullies on the Northern Plains of Mars

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Seasonal frost commonly forms at middle and high latitudes on Mars, much like winter snow on Earth. However, on Mars most frost is carbon dioxide (dry ice) rather than water ice. This frost appears to cause surface activity, including flows in gullies. (More at NASA Picture of The Day)
 
NEEMO Undersea Crew Tests Tools and Techniques For Future Spacewalks

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This photograph of NASA astronaut Serena Aunon (@AstroSerena) moving tools and equipment underwater was taken during the NASA Extreme Environment Mission Operations (NEEMO) 20 mission. NEEMO 20 is focusing on evaluating tools and techniques being tested for future spacewalks on a variety of surfaces and gravity levels. (More at NASA Picture of The Day)
 
Space Station Lunar Transit

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The International Space Station, with a crew of six onboard, is seen in silhouette as it transits the moon at roughly five miles per second, Sunday, Aug. 2, 2015, Woodford, VA. (More at NASA Picture of The Day)
 
Algae Bloom in Lake St. Clair

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On July 28, 2015, the Operational Land Imager (OLI) on the Landsat 8 satellite captured images of algal blooms around the Great Lakes, visible as swirls of green in this image of Lake St. Clair and in western Lake Erie. (More at NASA Picture of The Day)
 
Testing Hardware for Growing Plants and Vegetables in Space

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Astronauts on the International Space Station continue testing the VEGGIE hardware for growing vegetables and plants in space. VEGGIE provides lighting and nutrient supply for plants in the form of a low-cost growth chamber and planting "pillows" -- helping provide nutrients for the root system. (More at NASA Picture of The Day)
 
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