Third planet from the Sun and home planet of mankind. The largest solid body in the solar system. The only known planet to currently have abundant liquid water on its surface, oceans, and life. The only planet that has active plate tectonics and volcanism and the only one with a significant proportion of its own mass.
Earth/Magnetic Substorms - Space-weathering disturbances that occur several times per day at Earth and last about one to three hours. They are accompanied by various phenomena, including aurora in Arctic and Antarctic skies. They associated with hazardous energetic particle events that can interfere with communication and Earth-observing satellites. Less intense than those observed at Mercury.