History
Because Jean Grey was knocked out, Ororo piloted the capsule using her weather powers. However, it didn't work and all of the X-Men except for Wolverine and "Storm" died in the crash. Ororo seemingly emerged from the wreckage as Stormphoenix, whose power over the various aspects of weather was absolute and all-inclusive. She decided to rule the Earth as a benevolent dictator, freezing anyone who opposed her into the atmosphere. As she grew more cruel and detached from humanity, a plot emerged among those closest to her to kill her. However, when these people examined the original capsule, they found the real Storm in a healing cocoon. Since she was comatose, Kitty took over her body to confront Stormphoenix as a fraud. The Phoenix thus decided to leave Earth, but the real Storm died in the process, the strain of it all having been too much for her weakened body.[1]