Possible plot: The crew is sent to investigate JUP 158 after detecting a repeating radio signal originating from its magnetosphere. Upon arrival, they find the signal comes from an ancient alien probe embedded within the planet's atmosphere. The probe is malfunctioning and about to collapse, threatening the spacecraft. They must land on the gas giant (which is risky) to repair the probe or destroy it, leading to a climax where they decide to leave it as it's too dangerous.