Why is Earth’s magnetic shield weakening? – Space
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Earth's magnetosphere is an invisible shield, protecting our planet from harmful solar radiation. Many living organisms - from bacteria to insects or birds - seem to rely on Earth's magnetic field to navigate. Man has been doing so for a thousand years since the invention of the compass. But research shows the magnetic field is weakening and scientists are trying to understand why. Some believe it signals a pole reversal in progress, not an uncommon phenomenon in the history of our planet. As ground observatories fail to grasp the whole picture, we are sending magnetometers into orbit to try to measure the magnitude and the direction of the magnetic field. Made by euronews, the most watched news channel in Europe, euronews knowledge gives YouTubers amazing access into the scientists labs and research fields, including how the Earth's vital magnetic field is measured! Subscribe to euronews knowledge and receive, twice a week, a shot of space videos on Mondays and sci-tech videos on Wednesdays http://eurone.ws/Y9QTy3
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