The last human in the universe

Chapter 54 Launch
Under Zhao Changxing's order, the space mopping operation with the greatest strength that human civilization can use at this stage was launched immediately.

A total of 22 Wu-1 combat spacecraft and 30 Flame-1 transport spacecraft took on this task.

Originally, the number of Wu-1 combat spaceships was only 10, but now there are 22.

In addition to the spacecraft, up to hundreds of ground-based and space-based deep-space radars are involved in this mission.With the most stringent attitude, people scanned all the space around Sedna inch by inch, trying not to let go of even a speck of space dust.

Under this kind of search, within a month, people searched for 4 space flying objects that obviously do not belong to human civilization.This is obviously the spy satellite of the deep space civilization.

During the capture process of these 4 spy satellites, 3 successfully blew themselves up, and the last one directly paralyzed its electronic system through an electromagnetic pulse bomb, and it was captured intact.

It's just that what people get is the "corpse" of the spy satellite, not the "soul".Because all the electronic components inside it have been burned, all the data is lost.

People can be sure that unless the deep space civilization adopts a technology that is different from the current stage of human civilization, otherwise, within a range of [-] kilometers around Sedna, there will never be any technological creations of non-human civilization.

Under such circumstances, the No. [-] space elevator transformation operation finally began.

Part of the counterweight at the end of the No. [-] space elevator was temporarily removed to reduce its own weight, reduce the pressure on the space elevator cable, and prevent it from breaking beyond the limit.After that, part of the materials of the No. [-] space elevator were picked up.

Space Elevator One's cables are a meter in diameter, but that wasn't the case at first.At the beginning, people just pulled a cable with a diameter of only 5 mm, and then continued to increase on this cable, and finally expanded its diameter to one meter, with super tensile capacity.

The same is true of the projects being carried out at this moment.The first connected space elevator cable is also only 5mm in diameter.Even if a cable of this specification is 5000 kilometers long, its volume is only less than 100 cubic meters, and its mass is only a few tons. It only needs a Flame 1 spacecraft to transport it up.

At the end of this first cable, a counterweight weighing 200 tons was added, so that the cable was stretched straight.On the basis of this cable, people added subsequent cables, expanding its diameter to about 35 centimeters.

A cable of only 35 centimeters is enough to pull a mass of up to [-] tons, making it impossible to break free.

At this moment, the total length of the space elevator has reached the predetermined level.The final line speed also reached 1.83 kilometers per second.

The launch platform components that have been prefabricated in advance were delivered here and assembled here.

Because of the high linear velocity, there is even considerable gravity here, even higher than that of Sedna Star.It's just that the direction of gravity is opposite to Sedna's.One points to the center of the earth and the other points to space.

This environment is very suitable for assembly operations.There is no need to worry about parts flying around in a zero-gravity environment, and there is no need to worry about parts being too heavy due to too high gravity.

In just half a month, the launch platform with a total mass of about 2000 tons has been built.Afterwards, a large amount of liquid oxygen and methane fuel began to be transported by the Flame 1 spacecraft one after another, and the shells of the five interstellar missiles used for this revenge mission were also transported over.

All the assembly work took about another month.At this moment, all work has been done.

In the combat readiness and defense room of the human government of Sun City, under the watchful eyes of several members of the War Committee, Zhao Changxing tapped on the keyboard quickly with both hands, and entered a series of characters: "Dear deep space civilization, regarding the two parties you mentioned earlier Regarding matters related to sending diplomatic envoys to each other, after careful consideration, we believe that for the long-term friendship between our two civilizations, for the promotion of mutual understanding and mutual trust, and for future cooperation in economics, trade, technology, industry, resources, etc., It is very necessary to send envoys to each other. We are selecting suitable candidates and sincerely welcome the arrival of your envoys. I wish the friendship between our two civilizations will last forever and never change.”

Simply pressing the send button, the message was transmitted to the Pyro spacecraft, and then entered the space at the speed of light through the antenna on the Pyro spacecraft, and flew to the deep space star, which is more than 6000 million kilometers away. .

After finishing this matter, Zhao Changxing looked at the committee members.

"Has the relevant work been done? Okay, then, let's launch."

"Yes!"

With Zhao Changxing's order, the countdown began immediately.

When the countdown reaches zero, the launch platform has also moved to a suitable position.So, at the end of the space elevator, in the space that is a full 100 kilometers away from the surface of Sedna, [-] cables that fixed the launch platform with a total mass of [-] tons were disconnected at the same time.

Without the traction of the space elevator cable, the launch platform was immediately "thrown" out.

Its speed of movement has not changed at all, but its orbit has changed from orbiting to "flying" along the tangent of the orbit.The gravity inside it disappeared immediately, but because people had already made preparations in advance, this didn't have any impact on the inside.

At this moment, without consuming any fuel, the launch platform with a total mass of 1.83 tons has already obtained an initial velocity of [-] kilometers per second out of thin air.

After it was thrown out, ten flame 1 transport ships that had been specially modified and filled with fuel were also thrown out, and followed behind it at a slightly staggered angle from the launch platform.

The next moment, ten transport spacecraft and the launch platform started to accelerate at the same time.

Dazzling and bright flames appeared in the vast and deep universe.Under the high-speed push of the gas generated by the combustion of a huge amount of fuel, the powerful reverse thrust began to push the launch platform and the transport spacecraft to accelerate together.

When the acceleration action lasted only a dozen seconds, the first flame 1 transport ship had already caught up with it.Both sides maintain the same acceleration rate and the same acceleration direction.The two sides are relatively static.

Under such circumstances, the ten parts of fuel that had already been standardized and packaged on the spacecraft were transferred to the launch platform and placed in the automatic feeding device by the staff.

The spaceship then flew away.Shortly thereafter came the second ship, the third ship, the fourth ship...

It wasn't until all ten spacecraft had completed the fuel transfer that the astronauts who were performing missions on the launch platform were quickly transferred to this spacecraft at the risk of great danger.The spaceship then slowed down and began to return to Sedna.

At this moment, the speed of the launch platform has increased to 6.2 kilometers per second, and it is still accelerating.In this case, there is no returnable human creation to catch up with it.

Through this "unconventional" means, people supplemented part of the fuel for it.

In the combat readiness and defense room, Zhao Changxing and others nervously watched the acceleration process of the launch platform through the monitoring screen.

Time slipped away bit by bit.When the speed of the launch platform accelerated to 10.83 kilometers per second, nearly [-] tons of fuel on the launch platform had been consumed.They all turned into gas and ejected out amidst the violent combustion.

"Launch platform detached."

"Yes! The launch platform is detached!"

In the main control room, the on-site commander pressed a button nervously.The next moment, with a controlled micro-explosion, five interstellar missiles broke away from the launch platform.

In a gravity-free environment, without a reference object, they seem to be standing still at a speed of 10.83 kilometers per second.

Both sides are moving in the same direction and at the same speed.

"Missile fire."

"Yes! Missile fire."

The next moment, the tails of the five interstellar missiles that were dispersed during the controlled explosion ejected bright flames at the same time, pushing them to accelerate again.

The launch platform was left behind in an instant.

Ten minutes after ignition, the third-stage fuel of the interstellar missile designed with a three-stage structure was exhausted, and the speed increased to 10 kilometers per second.

"Throw the third level."

"Yes! Toss the third level."

The third-stage missile body immediately disengaged.

"Enter the state of inertial navigation."

The first and second stage projectiles will temporarily not ignite.After a long voyage, they will not ignite until they are close enough to the deep space star.

The inertial navigation will last for more than a month.

During this time, the steering engine equipped on the missile body will perform several short-time ignitions to apply some steering power to these missiles, causing them to slightly deviate from the fixed orbit.This is mainly to prevent the orbit from being too fixed and too easy to be predicted by the enemy.

More than a month passed by quickly.At this moment, it has entered the end of the voyage.

"Second stage ignition!"

The tails of the five interstellar missiles, whose length had been shortened by a full half compared to the initial one, emitted flames again, pushing them to speed up again.

"Throw the second level!"

At this moment, their speed has increased to 27 kilometers per second.

The total speed that can be increased by the entire first stage is only 2.83 kilometers per second.But its status is the most important.

It will not ignite again until the missile enters the vicinity of the deep space star's planetary defense system.The main purpose of doing this is to reduce the probability of being intercepted by accelerating the missile again.

This range was set at 15 kilometers by Zhao Changxing.

"Report to the leader, the missile will enter the range of the deep space planetary defense system in 5 minutes!"

Zhao Changxing suddenly stood up.

"First level, light the fire!"

　There were some data errors before, and a zero was missing during the calculation. . . .It has now been revised.does not affect reading.

　　
　
(End of this chapter)