From Mars to Earth, according to the Galaxy's speed of one-tenth of the speed of light, the theoretical time of arrival was one hour and twenty-two minutes, which was ten times the one-way communication time.
However, this was only in theory. In reality, it would never be possible.
The scene in science fiction that could run at the speed of light and achieve an emergency stop was impossible in reality.
The inertia of an object moving at the speed of light combined with its mass was very huge. First of all, the instantaneous reaction force needed to offset the inertia was an unimaginable astronomical figure.
Even the molecules that made up the spaceship couldn't withstand such a large counter-inertia force, let alone the carbon-based life form inside the spaceship.
According to the mathematical model, any matter that stopped at one-tenth of the speed of light to an absolute state of rest would be torn apart by the reaction force brought by inertia into the smallest unit of quarks in the microscopic world!
Aerospace technology was a systematic and complicated project. Even if the Human Alliance was about to become a level-3 civilization, they would not be able to overcome the problems brought about by the fundamental laws of physics.
Due to the existence of inertia, the acceleration and deceleration of the spacecraft could only be achieved by slow acceleration and deceleration.
Using the Galaxy as an example, this was how he docked.
According to the signal guidance given by the air port, the precise three-dimensional position of the docked target was determined.
Then, the spacecraft's computer gave a deceleration plan to ensure that the spacecraft was at the same speed as the sky port when it reached the target.
The sky port was essentially an air city built on a planet's orbit. Just like a satellite, the gravitational force around the planet provided it with a centrifugal force that allowed it to maintain its orbit.
The parking of a large spacecraft was a task that tested the skills and experience of the crew. Due to the high speed of the large spacecraft and its large mass, the entire process of decelerating in a vacuum without any resistance was very complicated.
First of all, it required a very long deceleration distance to complete the average deceleration process.
"Captain, we are currently about 30 million kilometers away from Earth. Please decide on a deceleration plan?”
On Galaxy, Tomcat asked Zhao Xiaofeng from the bridge.
"Have you received the signal from Earth?”Zhao Xiaofeng asked.
"At present, Earth has not given us any reply, nor has it sent us the coordinates of the sky port!”Tomcat replied truthfully.
"Then, can we observe the situation on the surface with our binoculars at maximum power?”Zhao Xiaofeng asked as he looked at the blue planet on the screen.
"I'm sorry, Captain. The atmosphere of the Earth is filled with many substances that may be produced by pollution, which seriously affects the penetration of our telescope. Therefore, unless we enter the atmosphere, our telescope will not provide us with any information on the surface!”Tomcat expressed its regret.
"Old Cat, this is already very valuable information. You did well!”
Zhao Xiaofeng heard Tomcat's reply and his tense expression relaxed.
"Captain, I don't quite understand. My internal program is unable to determine what valuable information my words will bring us.”
Tomcat looked confused.
At this moment, not only did Zhao Xiaofeng relax, he even lit a cigarette.
In space, oxygen was a very precious resource for carbon-based lifeforms.
Even though Galaxy's life support system could produce oxygen through the separation of hydrogen and oxygen from water, after a long voyage, there was not much water left.
The oxygen used to burn this cigarette could prolong Zhao Xiaofeng's life for a month under extreme circumstances!
This was the cruel and dangerous life in space. You never knew what would happen in the next moment.
"Tomcat, the information you provided provided us with at least two pieces of information. One is that Earth's atmosphere still exists, and the other is that there is pollution in the atmosphere!”
Zhao Xiaofeng took a deep puff of his cigarette and blew out a light blue smoke ring.
"But Captain, I still don't understand. What value does this have to us?”Tomcat's eyes were still filled with doubt.
"The existence of the atmosphere at least tells us that there are no irreversible changes on Earth! If it was an interstellar colonial civilization, the atmosphere would probably no longer exist after their destructive plundering of the planet's resources!
" The enemies currently occupying Earth are most likely carbon-based lifeforms like us, and they also need oxygen to sustain their lives!”
"It's even possible that there are still survivors of the Human Alliance in some corner of the Earth!”
"Captain, please continue!" Tomcat nodded in agreement with Zhao Xiaofeng's deduction.
"The existence of pollution in the atmosphere is undoubtedly very good news for us!”
"Understood, Captain!" Tomcat patted its head and jumped up from the driver's seat in excitement.
" Only the low-leveled civilizations would pollute the mother planet in terms of resource utilization! Captain, you just said that the enemies who occupied Earth are also carbon-based lifeforms and need oxygen to sustain their lives. Therefore, this is undoubtedly suicide!”
"Yes, Old Cat, you're right! Zhao Xiaofeng nodded.
" Therefore, from the pollution of Earth's atmosphere, I dare to conclude that the enemy we are facing is far from being as terrifying as we imagined. In fact, their civilization has just begun!”
"Captain, how can such a weak enemy make our human alliance disappear from the solar system?”Tomcat asked another question.
"Old Cat, I don't know your question either!”Zhao Xiaofeng put out the cigarette in his hand." I believe we can only find the answer to this question on Earth!"”
" Galaxy, start decelerating!" Zhao Xiaofeng ordered.
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