Scientists have discovered an invisible shield roughly miles above Earth that blocks so-called “killer electrons,” which can fry satellites and degrade space systems during intense solar storms. - Illustration by Andy Kale, University of Alberta.
'Magnetic' Discovery May Reveal Why Earth Supports Life and Mars Doesn't
Our magnetic field protects us from blasts of solar radiation & likely existed soon after the planet formed. This may explain why Earth is habitable & Mars is not. Without our magnetic field, solar winds would strip away Earth's atmosphere & oceans.
A spectacular Hubble Space Telescope image reveals the heart of the Lagoon Nebula. Seen as a massive cloud of glowing dust and gas, bombarded by the energetic radiation of new stars, this placid name hides a dramatic reality. The Advanced Camera for.