The 642Nd Year When the Sun Went Out

The sun went out and the earth entered its doomsday. Humanity built two huge spaceships, one of which rushed to the universe, while the other stayed on the earth forever due to energy problems. The power of science and technology has regressed, and the remaining energy is not enough to support everyone's survival. When Yin also woke up in the doomsday base, her team was about to leave the base and be sent on a death mission - transporting elderly survivors to the 'cemetery'. —— I want to write hard science fiction but my skills are not good enough. I ended up making up QAQ based on visual inspection. It is not expected to be too long. The full text will be saved and will be posted as soon as it is completed. Intention: To live or to die