Lightning From Space, and Red Sprites at Night (NASA, International Space Station, 12/13/13)

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    Editor's note: incredible image from the NASA Earth Observatory. There's an annoted image here that tells more about the landmarks in this photo. Have to say, this is a show-stopper!

    In this photo: This photograph, snapped by an astronaut aboard the International Space Station on Dec. 12, 2013, shows a white flash of lightning amidst the yellow city lights of Kuwait and Saudi Arabia.

    More information, NASA Earth Observatory:

    Across the atmosphere of Earth, lightning flashes about 50 times per second. That’s 4.3 million times a day and roughly 1.5 billion times a year. Using a new instrument on the International Space Station (ISS), scientists are trying to observe and dissect at least a few of those lightning bolts every day.

    Installed on the ISS in August 2013, the Firestation instrument includes photometers to measure lightning flashes, radio antennas to measure the static (a proxy for the strength of the electrical discharge), and a gamma-ray electron detector. Firestation is observing about 50 lightning strokes per day and looking for brief bursts of gamma rays that are emitted by some of them.

    Gamma radiation is usually associated with exploding stars or nuclear fusion, but scientists have found evidence that terrestrial gamma-ray flashes (TGFs) may occur in the atmosphere as often as 500 times a day. Atmospheric scientists are interested in the processes that trigger lightning within thunderstorms and what kinds of lightning produce gamma rays. TGFs may also be related to the atmospheric phenomena known as red sprites, electrical discharges that extend upward from thunderstorms.

    “The fact that TGFs exist at all is amazing,” said Doug Rowland, the principal investigator for Firestation and a space physicist at NASA’s Goddard Space Flight Center. “The electron and gamma-ray energies in TGFs are usually the domain of nuclear explosions, solar flares, and supernovas. What a surprise to find them shooting out of the cold upper atmosphere of our own planet.”

    Read more:

    Image credit: NASA

    More about space station research:

    View more photos like this in the "NASA Earth Images" Flickr photoset:

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    1. rhanelt 57 months ago | reply

      Just an amazing image.

    2. comfortable credit [deleted] 57 months ago | reply

    3. dodagp 57 months ago | reply

      Beyond astounding !!! Truly a show-stopper ! All illustrations and links are absolutely enlightening ; loved the mystical name "red sprites" ... Now,they are not elusive any more with the new Firestation instruments ... Wonder if Sylphs are also elusive ... Oh,the fabulous capture and the details triggered my wild imagination again ...

    4. NASA's Marshall Space Flight Center 57 months ago | reply

      Doda -Maryoga Doda, your comments always inspire us! I'm so glad that you visited the link...there was SO much great information on that page. Our friends at Goddard publish incredible images and info -- we're just glad to help spread the word! (Now you have me wondering if there's "red sylph" out there somewhere...)

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