What are Auroras?
Auroras, more commonly known as Northern Lights, are glowing green ripples that form arcs, and are always changing. Sometimes hints of red are able to be seen strewn through the green. They are only visible to the human eye at night, but are always there. Scientists from NASA have discovered that Auroras can be seen during the day using a special UV filter from space. They found out this information using Polar, a satellite that circles the Poles.
What Causes Auroras?