At the center of our solar system lies the
sun, the yellow star that sustains life on our planet. The sun's many magnetic
fields distort and twist as our parent star rotates on its axis. When these
fields become knotted together, they burst and create so-called sunspots. Usually, these sunspots occur in pairs; the largest can
be several times the size of the Earth's diameter.
A team of scientists has finished launching
instrument-laden weather balloons to the edge of Alaska's dazzling northern
lights, but the researchers still have a lot of work ahead of them.
Project Aether: Aurora was a two-week expedition that ran
through April 15, when the team had to head back home. The researchers lofted
nearly two dozen balloons in an effort to learn more about the northern lights (also known as the aurora borealis), test
out equipment and — aided by high-definition aurora videos taken 19 miles (30
kilometers) up in the atmosphere — help inspire students around the world to
pursue studies in science, technology, engineering and math.
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