mattotcha, 17 days ago to Astronomy 41,000 Years Ago Earth’s Shield Went Down https://www.universetoday.com/166893/41000-years-ago-earths-shield-went-down/ #astronomy #physics #earth #MagneticShield #LaschampsExcursion
41,000 Years Ago Earth’s Shield Went Down https://www.universetoday.com/166893/41000-years-ago-earths-shield-went-down/ #astronomy #physics #earth #MagneticShield #LaschampsExcursion