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2013

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  • Is Arctic Permafrost the "Sleeping Giant" of Climate Change?

    Is Arctic Permafrost the "Sleeping Giant" of Climate Change?

    June 24, 2013

    Arctic permafrost soils contain more accumulated carbon than all the human fossil-fuel emissions since 1850 combined. Warming permafrost, poised to release its own gases into the atmosphere, could be the "sleeping giant" of climate change.

  • ISS "Firestation" to Explore the Tops of Thunderstorms

    ISS "Firestation" to Explore the Tops of Thunderstorms

    Sept. 10, 2013

    Sometimes, Earth mimics a supernova, producing a Terrestrial Gamma-ray Flash from the tops of thunderstorms. A new lightning sensor on the International Space Station could solve the mystery of these energetic bursts.

  • Kepler Discovers a System of Tiny Planets

    Kepler Discovers a System of Tiny Planets

    Feb. 20, 2013

    NASA's Kepler mission scientists have discovered a new planetary system that is home to the smallest planet yet found around a star similar to our sun.

  • Kepler Discovers Smallest 'Habitable Zone' Planets

    Kepler Discovers Smallest 'Habitable Zone' Planets

    April 18, 2013

    NASA's Kepler mission has discovered two new planetary systems that include three super-Earth-size planets in the "habitable zone," the range of distance from a star where the surface temperature of an orbiting planet might be suitable for liquid water.

  • Mega-Canyon Discovered Beneath Greenland Ice

    Mega-Canyon Discovered Beneath Greenland Ice

    Aug. 29, 2013

    Proving that there is still much to discover about the landscape of Earth, data from a NASA airborne science mission has revealed an immense and previously unknown canyon hidden under a mile of Greenland ice.

  • Mystery of the Missing Waves on Titan

    Mystery of the Missing Waves on Titan

    July 21, 2013

    Saturn's giant moon Titan is dotted with hydrocarbon lakes and seas that bear an uncanny resemblance to bodies of water on Earth. Strangely, though, on Titan there are no waves. In this week's story, planetary scientist Alex Hayes discusses the mysterious flatness of Titan's liquid bodies and predicts a sea-change in the near future.

  • NASA Finds Long-Term Climate Warming Trend

    NASA Finds Long-Term Climate Warming Trend

    Jan. 15, 2013

    NASA scientists say 2012 was the ninth warmest of any year since 1880, continuing a long-term trend of rising global temperatures. With the exception of 1998, the nine warmest years in the 132-year record all have occurred since 2000, with 2010 and 2005 ranking as the hottest years on record.

  • NASA Mission To Study Mysterious Lunar Twilight Rays

    NASA Mission To Study Mysterious Lunar Twilight Rays

    Sept. 3, 2013

    A NASA spacecraft slated for launch on Sept. 6 will fly to the Moon to investigate the tenuous lunar atmosphere. Researchers hope "LADEE" will solve a mystery that has been puzzling them since the days of Apollo.

  • NASA Spacecraft Maps the Solar System's Tail

    NASA Spacecraft Maps the Solar System's Tail

    July 10, 2013

    Like a comet, the solar system has a tail. NASA's Interstellar Boundary Explorer (IBEX) has for the first time mapped out the structure of this tail, which is shaped like a four-leaf clover.

  • NASA to Broadcast Asteroid Flyby of Earth

    NASA to Broadcast Asteroid Flyby of Earth

    Feb. 13, 2013

    Starting at 2 p.m. EST on Friday, Feb. 15, NASA Television will provide commentary and images of near-Earth asteroid 2012 DA14 as it flies safely past Earth closer than many artificial satellites.