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Quantum fluctuations in science, space and society, from quarks to Hubble and Mars. Served up by Alan Boyle, NBC News Digital science editor. E-mail Alan, or connect via Facebook, Twitter or Google+.

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  • 1
    day
    ago

    Alaska volcano's plume as seen from space station

    NASA

    Astronauts aboard the International Space Station photographed this striking view of Pavlof Volcano on May 18. The oblique perspective from the ISS reveals the three dimensional structure of the ash plume, which is often obscured by the top-down view of most remote sensing satellites.

    By Alan Boyle, Science Editor, NBC News

    Astronauts aboard the International Space Station captured this stunning view of an ash plume streaming from Pavlof Volcano on May 18.  The volcano began erupting 10 days ago in Alaska's chain of Aleutian Islands, about 625 miles (1,000 kilometers) southwest of Anchorage.

    LiveScience reports that "the volcano's ash cloud has reached as high as 22,000 feet" — which is still at least 200 miles (320 kilometers) below the space station. Feast your eyes on additional orbital views of the volcano from NASA's Earth Observatory and the Gateway to Astronaut Photography of Earth. And if you think Pavlof looks impressive from outer space, check out the amazing perspectives from the Alaska Volcano Observatory.

    The volcano, which erupted in the Aleutian Islands, began spewing ash on May 13, and the photo was taken five days later. NBC's Ann Curry reports.

    2 comments

    Awesome pictures, thanks to our "eyes in the sky" for bringing that to us!

    Show more
    Explore related topics: alaska, space, science, volcano, iss
  • 9
    Dec
    2012
    2:09pm, EST

    Jack Frost nipping at Alaska's nose

    Jeff Schmaltz / NASA MODIS / GSFC

    This outer-space view of southwest Alaska was captured on Nov. 21 by the MODIS imager on NASA's Aqua satellite.

    By Alan Boyle, Science Editor, NBC News

    Follow @b0yle


    This satellite picture captures a broad view of southwest Alaska just as Jack Frost is nipping at the northernmost state's "nose."

    NASA's Aqua satellite took aim at the region with its Moderate Resolution Imaging Spectroradiometer, or MODIS, on Nov. 21. Even though that's a month before the official start of winter, Arctic sea ice is beginning to form, creating white tendrils that spread out from the Alaska Peninsula (a geological feature that always reminds me of an elephant's nose).

    If you take a close look at the picture, you can trace the snow-covered volcanoes on the peninsula, the tan patches of bare land, the bright reflections from Alaska's frozen rivers and the deep green boreal forests breaking through a white blanket of frost. Need a closer look? Check out this 4-megabyte, 250-meter-resolution version from NASA's MODIS website. To get your bearings, compare the recent view with this annotated satellite picture from Google Maps.

    This frosty look at Alaska serves as today's offering from the Cosmic Log Space Advent Calendar, which features a fresh view of Earth from space every day from now until Christmas. Follow the links below to feast your eyes on more visual goodies for the holiday season:

    Follow @CosmicLog
    • 2012 Cosmic Log Space Advent Calendar
    • Day 1: A fantastic Chinese fan
    • Day 2: Satellite shows a Grander Canyon
    • Day 3: Typhoon stirs awe — and alarm
    • Day 4: Glittering nighttime view of Riyadh
    • Day 5: Night lights shine on 'Black Marble'
    • Day 6: Holy sites seen at night
    • Day 7: Blue Marble still leaves its mark
    • Day 8: Satellites look into a volcano's hell
    • 2011 Cosmic Log Space Advent Calendar
    • 2010 Cosmic Log Space Advent Calendar
    • The Atlantic: Hubble Advent Calendar
    • Zooniverse Advent Calendar

    Alan Boyle is NBCNews.com's science editor. Connect with the Cosmic Log community by "liking" the log's Facebook page, following @b0yle on Twitter and adding the Cosmic Log page to your Google+ presence. To keep up with Cosmic Log as well as NBCNews.com's other science and space news coverage, sign up for the Tech & Science newsletter, delivered via email. You can also check out "The Case for Pluto," my book about the controversial dwarf planet and the search for new worlds.

    39 comments

    It looks quite normal for November in Alaska. Today is not normal, it's been above zero in Fairbanks since Sunday morning. Quite nice actually!

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    Explore related topics: alaska, space, nasa, featured, aqua, cosmic-log, tech-science, holiday-calendar, 2012-holiday-calendar

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Science editor at msnbc.com, author of "The Case for Pluto," winner of the National Academies Communication Award for Cosmic Log in 2008. Alan Boyle covers the physical sciences, anthropology, technological innovation and space science and exploration for msnbc.com. Check out Cosmic Log's archives by following the links below, and see Boyle's full biography at http://bit.ly/boyle-bio

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The Case for Pluto
Alan Boyle's first book tells the story of Pluto's ups and downs as well as the discoveries of other dwarf planets in our own solar system and even more alien worlds beyond. Buy "The Case for Pluto" ...

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