• NASA’s Earth Observatory has tracked down images resembling all 26 letters of the English alphabet using only NASA satellite imagery and astronaut photography. In this image, the letter ‘Y’ is for yardangs, elongated landforms sculpted by erosion and similar to sand dunes, but instead comprised of sandstone or siltstone.
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  • The striking feature in this image, acquired by the HiRISE camera on NASA’s Mars Reconnaissance Orbiter on March 19, 2014, is a boulder-covered landslide along a canyon wall. Landslides occur when steep slopes fail, sending a mass of soil and rock to flow downhill, leaving behind a scarp at the top of the slope.
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  • Pluto gets into the holiday spirit, decked out in red and green using a pair of Ralph/LEISA instrument scans.
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  • Zinnia flowers are starting to grow in the International Space Station’s Veggie facility as part of the VEG-01 investigation. Veggie provides lighting and nutrient supply for plants in the form of a low-cost growth chamber and planting “pillows” to provide nutrients for the root system.
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  • Expedition 46 Flight Engineer Tim Kopra on a Dec. 21, 2015 spacewalk, in which Kopra and Expedition 46 Commander Scott Kelly successfully moved the International Space Station’s mobile transporter rail car ahead of Wednesday’s docking of a Russian cargo supply spacecraft.
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  • NASA’s Lunar Reconnaissance Orbiter captured a unique view of Earth from the spacecraft’s vantage point in orbit around the moon.
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  • Galaxy 1068 is shown in visible light and X-rays in this composite image. High-energy X-rays (magenta) captured by NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, are overlaid on visible-light images from both NASA’s Hubble Space Telescope and the Sloan Digital Sky Survey.
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  • Russian cosmonaut Yuri Malenchenko manually docked the Soyuz TMA-19M spacecraft on Dec. 15, 2015 to the International Space Station’s Rassvet module after an initial automated attempt was aborted. Flight Engineer Tim Kopra of NASA and Flight Engineer Tim Peake of ESA flanked Malenchenko as he brought the Soyuz to the Rassvet port.
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  • The Soyuz TMA-19M rocket is launched with Expedition 46 Soyuz Commander Yuri Malenchenko of the Russian Federal Space Agency (Roscosmos), Flight Engineer Tim Kopra of NASA, and Flight Engineer Tim Peake of ESA (European Space Agency), Tuesday, Dec. 15, 2015 at the Baikonur Cosmodrome in Kazakhstan.
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  • Expedition 46 Soyuz Rollout
    In this one minute exposure, a meteor streaks across the sky as the Soyuz TMA-19M spacecraft is rolled out by train to the launch pad at the Baikonur Cosmodrome on Sunday, Dec. 13, 2015 in Kazakhstan. Launch of the Expedition 46 crew to the International Space Station aboard the Soyuz is scheduled for Dec. 15, 2015.
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