the.com/magnetosphere
earth's invisible force field, deflecting solar punches so your gps still works.
means the region around a planet dominated by its magnetic field, shaped by the constant pressure of the solar wind.
from coined in 1959 by physicist thomas gold, describing the magnetic bubble scientists realized surrounded earth after early satellite data revealed it.
shapeteardrop, compressed sunward, stretched into a long tail nightward
sizetail extends past the moon's orbit
aurora linkcharged particles leaking in create the northern lights
mars lacks onewhy solar wind stripped its atmosphere over eons