Scientists Discover An Invisible Shield Surrounding Earth, Baffled At How It Formed Nov28 by Joseph Saraceno Scientists have discovered something truly remarkable above the Earth’s atmosphere. An invisible shield is located approximately 7,200 miles above Earth that scientists are likening to “force fields on Star Trek.” MORE Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) Related