Scientists Find Invisible Space Shield Protecting Earth
An invisible barrier is keeping dangerous super fast electrons from interfering with our atmosphere, but scientists aren't entirely sure how.By Sebastian Martinez | November 27, 2014
On this Thanksgiving, an invisible shield protecting the earth from dangerous super fast electrons might not be too high on your list of things to be thankful for, but maybe it should be. (Video via NASA)
Scientists found this barrier through NASA probes in the Van Allen radiation belts, which range from about 620 miles to 37,000 miles above the earth's surface. (Video via NASA)
Dr. Nicky Fox of Johns Hopkins University explains, "The radiation belts are two donut-shaped regions that encircle the earth. They're home to very intense radiation, both electrons and protons. And when these particles get very energized they can cause problems for satellites and astronauts."