Tian Rui Shuo Fu

Payload specialist, Tang Yue, who is a mechanical and electrical engineer by training, is left stranded on Mars when he receives news from his AI robot assistant, Tomcat, that Earth has exploded. He believes himself to be the last human in the Universe.
Turns out, he is only the last man in the Universe. Botanist, Mai Dong, had been left on the United Space Station (USS) orbiting Mars, to await Tang Yue's ascent to the USS before they make their journey back to Earth. But now, it's impossible.
Join the trio's quest for survival as they attempt to unravel the mystery of Earth's disappearance.

Dead on Mars

CKtalon

Tang Yue kept a note of the time. Once the twenty minutes were up, he and Tomcat scooped the soaking tomato seeds from the beaker.

"The sterilization is complete. Next up would be vernalization. It's done similarly by soaking," Mai Dong said. "However, the soaking will take a little longer. You need to soak the seeds in water for eight hours, so you can soak them tonight and scoop them out tomorrow morning."

Tang Yue unplugged the heater and removed the beaker from the tripod. The precious water could still be used, and Tang Yue didn't wish to waste a single milliliter.

They soaked the seeds in water again. Soaking them for an entire night was to allow them to absorb sufficient water.

Sol Hundred and One, Planting the Tomato Seeds in the Pots