Complex sentence: In the Gundam 00 movie, once the activities of the ELS are realized, Descartes begins developing headaches; the ESF soon notice an entire ELS armada emerging from Jupiter's red spot and set to arrive at Earth within 95 days.
Split into simpler sentences: In the Gundam 00 movie, once the activities of the ELS were realized, Descartes started feeling headaches. The ESF soon began to notice an entire ELS armada emerging from Jupiter's red spot and set to arrive at Earth within 95 days.