  In the Earth's magnetosphere, there are fewer than a dozen dedicated probes
beyond low-Earth orbit making in-situ observations at any given time. As a
result, we poorly understand its global structure and evolution, the mechanisms
of its main activity processes, magnetic storms, and substorms. New Artificial
Intelligence (AI) methods, including machine learning, data mining, and data
assimilation, as well as new AI-enabled missions will need to be developed to
meet this Sparse Data challenge.
