Tags: Spacecraft.
The Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission was originally a constellation of five NASA satellites (THEMIS A through THEMIS E) to study energy releases from Earth’s magnetosphere known as substorms magnetic phenomena that intensify auroras near Earth’s poles. The name of the mission is an acronym alluding to the Titan Themis.Three of the satellites remain in the magnetosphere while two have been moved into orbit near the Moon.
