NASA just discovered a bizarre ‘bubble’ around Earth, and humans accidentally created it

Most of the time, NASA spends its days searching for and studying things in space that resulted from natural phenomena — like creepy valleys on Mars and vast oceans on Europa — but its newest discovery is quite different. In a new paper published in Space Science Reviews, researchers reveal the existence of a man-made "bubble" created by a specific type of radio communication technology. However, unlike most of the things humans have accidentally created on Earth, this peculiar shiel