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Spectacular light show in the Norwegian sky



There was an unexpected treat for stargazers in Norway this week – a spectacular new show of green, blue, and purple light.

But it's not the result of aliens or UFOs – something much more human is the cause.

The lightshow was a result of a NASA program called "Auroral Zone Upwelling Rocket Experiment" or AZURE for short.

 Colorful clouds formed by the release of vapors from the two AZURE rockets allow scientist to measure auroral winds.

LEE WINGFIELD / NASA

Colorful clouds formed by the release of the two AZURE rockets allow scientist to measure auroral winds.

The space agency launched two rockets from Andøya Space Center in Norway last week which carried scientific instruments for the energy exchange within an aurora

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Two harmless gases were released into the atmosphere – trimethyl aluminum (TMA) and a barium / strontium mixture. These helped track the flow of neutral and charged particles with the auroral wind.

 One of two Black Brant XI rockets leaves the launch pad at the Andøya Space Center in Norway.

LEE WINGFIELD / NASA

One of two Black Brant XI rockets leaves the launch pad at the Andøya Space Center in Norway.

In a statement, Nasa said: "By tracking the movement of these colorful clouds via ground-based photography and triangulating their moment-by-moment position in three dimensions, AZURE will provide valuable data on the vertical and horizontal flow of particles. in two key regions of the ionosphere over a range of different altitudes. "

AZURE is one of nine missions being part of the Grand Challenge Initiative (GCI) – Cusp, a series of international sounding rocket missions.


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