Our protective blanket helps shield us from unruly space weather. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Earth's magnetic field — also ...

See you on the flip side. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A reversal in Earth's magnetic field thousands of years ago plunged the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Using 11 years of magnetic field measurements from the ...