Thank you magnetosphere. We just learned you have a neighbor. Fans of science can be proud that they know about Earth’s electromagnetic shield. Without it, the planet’s life would be tormented by the Sun’s onslaught of radiation. NASA just announced the discovery of a second shield that’s been protecting us from ultra-relativistic electrons. What other shields are helping us that we aren’t aware of?
“Plasma Shield” – MIT News
Pretending Not To Panic 