This image shows a beautiful auroral display over Bear Lake, Alaska in 2005. NASA's VISIONS sounding rocket mission (VISualizing Ion Outflow via Neutral atom imaging during a Substorm) is studying what makes the aurora, and how it affects Earth’s atmosphere. It will launch from Poker Flats, Alaska, on a night with a strong aurora between Feb 2. and Feb 17, 2013. VISIONS will determine how the aurora heats and "slingshots" oxygen out of the upper atmosphere. We know from other satellite missions that near-Earth space often gets disturbed by the "auroral wind", which is this flow of oxygen
This image shows a beautiful auroral display over Bear Lake, Alaska in 2005. NASA's VISIONS sounding rocket mission (VISualizing Ion Outflow via Neutral atom imaging during a Substorm) is studying what makes the aurora, and how it affects Earth’s atmosphere. It will launch from Poker Flats, Alaska, on a night with a strong aurora between Feb 2. and Feb 17, 2013. VISIONS will determine how the aurora heats and "slingshots" oxygen out of the upper atmosphere. We know from other satellite missions that near-Earth space often gets disturbed by the "auroral wind", which is this flow of oxygen from the upper atmosphere out to and beyond geosynchronous orbit. While this wind is not very dense (only one ten billionth the pressure at Earth's surface) it has important effects on the space environment. In particular, it is one factor that helps to control the behavior of the Van Allen radiation belts, which can damage satellites. We know this wind is strongest when the aurora is active, but we don't yet know how much oxygen gets lifted out of our atmosphere, how long it takes, at what altitude the wind blows strongest, or what parts of the aurora are most efficient at driving it. VISIONS will fly through and above the aurora, and into the region where this auroral wind is generated, up to 500 miles altitude, in order to explore how the aurora drives this important space weather process. Credit: Joshua Strang/USAF --- To read more about the VISIONS mission go to: pages/sunearth/ VISIONS: Seeing the Aurora in a New Light A team of NASA scientists arrived in Poker Flats, Alaska at the end of January, 2013. The team is patiently waiting for the exotic red and green glow of an aurora to illuminate the sky. Instead of simply admiring the view, this group from NASA's Goddard Space Flight Center of Greenbelt, Md., and The Aerospace Corporation of El Segundo, Calif. will launch a sounding rocket up throug
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Keywords: astronomy, copy, editorial, nasa, news, night, photograph, photography, rocket, sky, space, stock
