Survival: Doomsday, Wandering Universe

There are only 100 people left on the earth, and there is terrible acid rain in the sky 24 hours a day. Since 80% of the earth's land turned into desert 100 years ago, humans have begun to undergo mass extinctions. On the first day, I built a rocket and flew out of the desert planet. The next day, I came to a planet full of oceans, ready to search for life. On the third day, I came to a strange planet. Unfortunately, the intelligent creatures here are still in the primitive stage. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.