A chunk of the Earth's magnetic field is weakening, which could wreak havoc on some satellites

1:49pm PDT - May 26th, 2020    the atlantic - Business Insider

• Earth's magnetic field protects the planet from deadly solar radiation, but it isn't static.
• It has gotten 9% weaker, on average, in the last 200 years.
• Satellites that keep tabs on the field show that one weak spot over the souther…