Scholar’s Advanced Technological System

To understand the difference between the advantages and disadvantages of electrical propulsion and chemical propulsion, one must first understand the concept that a junior high school student understands, which is acceleration.

On a shorter distance scale, because of the enormous thrust of chemical propulsion, spacecraft can achieve a high velocity in a shorter period of time, thus gaining an overall advantage in flight time.

However, if the distance is scaled up to millions of kilometres, or tens of millions of kilometres, this is another case.

Electric propulsion, while not capable of spraying the mass once in a relatively short period of time in exchange for enormous thrust, can achieve a maximum speed far greater than that of a chemical rocket by means of continuous acceleration and with enormous specific flushes.

Therefore, for BFR rockets, it takes three months to reach Mars over tens of millions of kilometres.

But for the Xia Guang, which departs directly from the moon orbit, a month is enough.

Again, if you miss the optimal launch window period for the Horman transfer orbit, and if the relative position of Mars to Earth is at the optimal launch position, it may not take a month to complete a flight from the Moon to Mars.

In the deep, dark depths of space, astronauts stationed at the Moon Palace arrived at their destination and completed the quality replenishment of the Xia Guang, slowly separating from the Moon Palace space station.

Sitting in the cockpit, Xu Zhenghong reached out and pressed on his helmet, reporting clearly to the ground command center.

“This is the Xia Guang, we have completed all our missions and request instructions for the next step. ”

“This is Ground Command Command Center. Congratulations on completing all your tasks. Please switch to Cruise Mode and wait for the next steps. ”

“Roger, switching to cruise mode. ”

Sitting in the co-pilot's seat, looking at Zhenghong Xu switching to cruise mode, Liu Biao asked casually.

“Don't you want to go straight back? ”

“Ground Command, let's wait. ”

“Because of the Americans? ”

“Yes.”

Speaking of this, Liu Biao's heart also couldn't help but feel a little emotional.

About two or three months ago, they had seen each other in extraterrestrial space orbit far away.

I watched them fly away before I could say hello.

I didn't expect to see you again soon, but in this way.

Silence lasted a little while in the cockpit.

Just as Xu Zhenghong half-closed his eyes and prepared to sleep for a while, the signal light in the cockpit suddenly flashed slightly.

Liu Biao opened his mouth and cautioned: "The signal from the ground command center. ”

“Yes,” Xu Zhenghong opened his half-closed eyes and sat up straight from the chair, reaching out and pressing on the helmet. “This is the Xia Guang, heading to the scheduled airspace, ready to switch routes...”

“Five, four, three, two, one... ignite! ”

The dark blue arc jets from the five electric propulsion engines of the Xia Guang, dragging the silver spacecraft towards the distant sea of stars...

……

Fifteen minutes ago.

In this dilemma, the White House finally made its choice. At the same time, the Ministry of Foreign Affairs of China received a call from the President of the United States, in which the President formally requested assistance.

Ten minutes ago, the message reached the Jinling Space Launch Center, where the navigation crew was terminated and immediately returned to work.

Also at almost the same time, Xia Guang, who was on a mission in the lunar orbit, received information and immediately initiated a preparatory programme to travel to Mars along a route previously calculated by the Earth Command Center after the completion of the supply of work and living materials by the Lunar Palace Space Station.

Less than 15 minutes between receipt of the request and departure of the rescue team.

At this moment, the world has once again witnessed the efficiency of China.

Meanwhile, the Moon Orbit Construction Committee held a press conference at the Grand Hotel Jinling, where journalists from all major media outlets were publicly updated on the progress of the rescue operation.

This move almost didn't exhale American air.

Where's the low-key deal?

Even reporters are invited!

Originally, the White House intended to deal with the situation in a low-key manner. As a result, it was unexpected that the Chinese side directly and dramatically put up a major operation, held a press conference and reported the rescue progress in real time to all sectors of society.

Especially the rescue programme, which was launched in less than 15 minutes, left NASA Ares planning ground command centre staff red-handed.

It took them three days to analyze the options and possible outcomes, but none of the people responsible told them whether they could save them or not, so that they missed the best window for the launch.

As a result, the Chinese side did not make any budget assessment, and in less than 15 minutes the shipping lanes were identified and rescue teams were dispatched, exploding more than one street in efficiency.

Although they are also aware that this rescue was certainly not done within 15 minutes, it may have been ready before the video call, even three days ago.

But even so, this efficiency is enough to keep them out of sight.

Not only that, the openness, transparency and seriousness shown by the Chinese State in providing "humanitarian” relief are in stark contrast to NASA's previous push to the left and right. All the staff of the Ares Plan Ground Command Centre at one time, as well as those who support the Ares Plan, feel groundless and the wind of public opinion has changed overnight.

[I am ashamed of NASA.

[Unbelievable, if we weren't Chinese, we wouldn't even know what exactly happened to our colonists on Mars?! Is the White House going to send someone up there to collect their bodies when they're all weathered?

[Send a rescue team in 15 minutes… God, how is this possible!

[Don't talk to me about rescue difficulty, I seriously doubt NASA has any intention of saving people at all!

[Until now, I don't know why the Mars Diary has stopped broadcasting, not because communications are expensive, not because of dust storms on Mars, but simply because our White House and NASA want to hide the truth...]

In order to recover his face and demonstrate his determination to take his citizens home, the White House, aware of the seriousness of the matter, announced urgently that it would bear the entire budget of the rescue plan.

However, less than five minutes after the announcement, NASA received a bill from across the Pacific Ocean.

A total of $1.7 billion.

Support code scanning and installment payments.

After seeing this bill, Director Carson was barely gassed for internal injury.

$1.7 billion!

Nima can rebuild the Sauvignon!

Is this the ATM?

At this point, his assistant walked over from the side.

“Sir…”

“What's the matter? ”

Looking at director Carson, the assistant hesitated for a moment and stopped talking.

“A bad news…”

Looking at Grandma and Grandma's men, Carson was impatient: "Don't talk nonsense, just say it. ”

“Yes!” said the assistant, hurrying down to see the boss's impatient expression, "… just half an hour ago, we found out on the official website of the Chinese State Media that they had a documentary show on their side. ”

As soon as I heard that, Director Carson's heart snapped and the darkness didn't feel good.

But where did this bad come from, he couldn't say.

He opened his mouth and asked, reluctantly speaking.

“What documentary? ”

The assistant smiled bitterly.

“The name seems to be… Mars Rescue. ”

Carson: "…”

He doesn't want to say anything right now except a word about Fak...