Generating new scientific hypotheses and helping guide scientific discovery. In this regard AI / ML can help us:

develop new materials (stronger lighter materials for airplanes, so the need less fuel)

develop better superconductors (make t3h electric cheaper)

create more efficient solar cells (make t3h electric cheaper)

develop better techniques for desalinizing seawater (make freshwater available in areas where supplies are limited)

discover new drugs (cure t3h disease)

etc., etc., etc.