Stellar Exodus

The sun undergoes a sudden catastrophe, and deadly solar flares close in step by step. Humanity builds deep-space ships equipped with rotating gravity cabins, carrying Earth's last batch of holdouts, and temporarily uses Mars as a waypoint for rest and reorganization. Mars is not the destination; it will eventually be unable to escape the sun's catastrophe. Humanity's true destination is a distant star—Tianyuan Si. On the long deep-space journey, rations keep shrinking, and the crew voluntarily compresses their living space, giving up cabin spots to the civilians. Everyone joins hands to fight against the desperate situation, all to find a new home where the endangered human civilization can settle permanently. — Description from novelcodex.orgFull novel: Stellar Exodus — read the rest free on N​o⁠v​e⁠l​C⁠o​d⁠e​x⁠.​o⁠r​g⁠