"What did you say… Repeat it again?"
"Once the comet hits Mars, the one in greatest danger is the United Space Station," Tomcat said. "You can dig a hole in the ground to hide, but the space station has nowhere to hide."
Tomcat took out a pen and paper.
"According to the survey telescope's observations, we can predict the size of Comet Tomcat-Tang-Mai I's nucleus. Its diameter is roughly between twenty-eight to thirty kilometers." Tomcat drew a circle on a piece of paper. "It's mainly made of water, carbon dioxide, and methane. We can roughly estimate its mass by multiplying the volume by density, and the answer is 1.02 × 10¹⁴ tonnes.
"In other words, 102,000,000,000,000 tonnes."
Tomcat wrote a long string of zeros on the piece of paper.
Tang Yue took quite a while to count all the zeros.
"One… hundred and two trillion tonnes?"
Tomcat nodded.
