At the current stage of space travel, Tom was always constrained by a very serious problem.
The efficiency of chemical fuel was too low.
It was precisely because of this that when he expedited to God-Enemy Star, Tom had no choice but to "throw" a large amount of supplies and fuel from Loshen Star to support the battleship's combat.
When launching the probe to Earth, he even had to build a super-giant rocket with a total mass of over 70,000 tons.
Although building wonders was indeed very fulfilling, behind the sense of accomplishment, there was more helplessness.
If there were other options, who would bother building such a large rocket?
At this moment, facing the massive project of the God-Enemy Star development, the future spaceship traffic between the two planets would be extremely frequent.
