vivid auroras from space earths natural defense against solar winds a spectacle of geomagnetic phenomena

auroras space earth defense solar winds spectacle geomagnetic phenomena protection planetary field sky colors northern southern lights radiations particles atmosphere auroraborealis auroraaustralis universe astronomy science nature beauty display night skywatching polar latitudes glow energy plasma astrophysics geophysics celestial miracles illumination stratosphere electromagnetic stunning charges intensity maximum observation mesmerizing