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

Orion II had finally broken past the ten-thousand-meter barrier.

It had endured the most dangerous stage and its eternal temperature was dropping. The engine's thrust was still working normally, and the situation was basically stable. The computer began guiding the various modules on the spacecraft as it worked in a prescribed order. Tomcat had said that he had the confidence of the Milky Way for this simulation. Based on the current situation, it really had it in the bag.

The workstation began whirring away as doing a full simulation of Orion II pushed it to its limits. The chassis was already scalding to the touch, so much so that Tang Yue had to get some ice to cool it down.

"IMU data refreshed. Radio altimeter normal. Orion II passing through the ninth waypoint. Landing ellipse set at 30 × 30km. Landing altitude predicted at 1.3 km."

"Mass balanced, flight-angle path adjusted. Throttle control, normal."

Sol Two Hundred and Eighty-Three, You're Still Alive