A team of astronauts spent six years flying nuclear-powered spacecraft to explore Venus, Mercury, Sun, Mars, Jupiter, Saturn, Pluto and an unknown comet. Among them, the astronauts landed on Venus, Mars, Jupiter IO, Pluto and Comet to conduct field visits and take samples, and launched probes to Europa and Titan. Many scenes are very fascinating: watching the scenery of Mars on the cliffs of Mariner's Valley, creating an aurora on the surface of the spacesuit due to Jupiter's strong magnetic field on Jupiter on IO, driving the spaceship into the Cassini ring seam, admiring the 100 times the full moon sun and the 10-full moon-sized Pluto Charon, and so on, such exciting scenes abound. One of the crew died of solar radiation when he reached Saturn, and the crew buried his body in Saturn's rings, which I think is the most romantic grave in the world.