What does THEMIS mean?
THEMIS is an acronym for Time History of Events and Macroscale Interactions during Substorms. In Greek mythology, Themis is the ancient goddess of justice, wisdom and good counsel and the guardian of oaths. Themis is depicted with a sword and scales, symbolizing both her power and her impartiality. The blindfold she wears depicts “blind justice.” This figure is seen in courthouses and law offices. The THEMIS mission will impartially distinguish between two disparate phenomenological and plasma-physical models of substorm onset in order to solve a tantalizing mystery: Where and when do substorms start in the Earth’s magnetosphere? What is NASA’s THEMIS Mission? THEMIS is NASA’s first five identical satellite mission, launched as a constellation, to resolve the tantalizing mystery of what causes the spectacular sudden brightening of the Northern Lights or the aurora borealis – the fiery skies over Earth’s northern pole. These lights are the visible manifestations of sudden large energy r