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Just as the Prospector probe is launched from Cape Canaveral to the Moon to identify any traces of ice on its hidden surface, Piero Angela and his team begin their great space adventure. Aboard the Noos spacecraft, which allows Piero Angela's alter-ego and a crew of astronauts to travel at great speed in and out of our solar system, they first land on the Moon to inspect the Apollo mission site . They then continue toward Venus, passing through a dense atmosphere of gas and with strong winds. Finally, the journey concludes near the Sun, where the crew can admire sunspots, prominences, and incandescent clouds of plasma.