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Rocket flown through northern lights to help unlock space weather mysteries

RATE THIS! +21
Posted in Science on 20th Feb, 2015 06:43 PM by AlexMuller

The northern lights are more than one of nature's most awe inspiring sights, they can adversely affect power grids and communications and navigation systems. Researchers have flown a rocket through the phenomena to take a closer look with the aim of predicting space weather.

 
The northern lights are caused by solar flares from the Sun. But these same solar flares are the source of more than just the Aurora Borealis. On the Earth’s day side, sunlight strips electrons loose from the atmosphere, forming clouds of electrons that drift across the Arctic and, although they are invisible to our eyes, appear on radar screens and in super-sensitive cameras.
 
Within just a few hours, electron clouds that form during the day over North America can cross the Arctic and reach Scandinavia after being drawn out of the polar region by the northern lights. The University of Oslo researchers have found that it is when electron clouds coincide with the northern lights that the most serious interference to navigation and satellite systems occurs. It is these rare but disruptive events that the ICI4 rocket, which launched today from Andoya Space Center in Norway, is tasked with exploring.
 
"We wished to find the causes of these interferences," says Jøran Moen, Project Director. "We need this knowledge to establish a forecasting system for space weather." The rocket had been ready to go from February 9, but it wasn't until today that the ideal conditions presented themselves. The team not only had to wait for the right local weather conditions, but the right solar weather conditions where the electron clouds coincided with the northern lights, so the rocket could fly through the phenomenon and collect its measurements.
 
Ground-based instruments, such as the EISCAT incoherent scatter radars in Northern Norway and Svalbard, located midway between continental Norway and the North Pole, confirmed that the rocket was on target to fly through a space weather phenomenon in an active auroral region. However, because the target was moving at around 1,000 km/s, the data gathered by the rocket will need to be examined before it is known for sure whether the rocket did indeed successfully intersect the intended space weather phenomenon.

Tags: rocketspacenorthern lightsArcticAurora

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Comments

Author: Guest
Posted: 2015-02-21
+1
I hope this mission was successful and that new findings will help to learn more about Nordic lights and their effects Reply
Author: Guest
Posted: 2016-02-18
+0
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