The Science Fiction World of Xueba

"Tas, calculate the remaining fuel of the spacecraft, and make a route plan to the fifth planet."

"Captain Pang, the remaining fuel of the spaceship is 30%. It will consume 10% of the fuel to go to planet 5, about 5% of the fuel will be consumed during landing, and at least 20% of the fuel will be consumed for takeoff and return. If you land on planet 5 , there will be no way to carry out the return mission.”

Pang Xuelin said: "For the time being, the take-off and return plan is not considered. If Murphy can be found on the fifth planet, then use her shuttle to refuel. If Murphy is not found, then hibernate on the fifth planet and wait Rescue."

"Understood, Tass will make a flight plan immediately."

...

Planet No. 5 is only about 10 million kilometers away from Planet No. 6. This planet happens to be located on Lagrangian L1 under the joint action of the red giant star and the Jupiter-like planet.

The so-called Lagrangian points, also known as translation points, are five special solutions to the restricted three-body problem in celestial mechanics. A point in space of a small body under the gravitational pull of two large bodies at which the small body remains substantially at rest relative to the two large bodies.

In the solar system, the famous Trojan asteroids are located at the Lagrangian point between the sun and Jupiter, co-orbiting with Jupiter.

Here, the revolution orbit of planet 5 is basically synchronized with that of the Jupiter-like planets.

It only took Pang Xuelin a week to successfully drive the shuttle to the sky above the synchronous orbit of the fifth planet, and then captured a synchronous orbit relay communication satellite left by Murphy.

"Captain Pang, the communication log on the relay satellite shows that on the day of landing, Murphy sent an encrypted message about Planet No. 5 to the Eternal Night through the relay satellite, and no more information has been sent out since then."

Pang Xuelin frowned, looked at the planet covered with a large amount of green, like an emerald, and said: "First analyze the encrypted information, and then descend to the fifth planet to conduct an all-round observation. I need everything about this star. material."

"yes!"

Three hours later, all the information about planet No. 5 appeared in front of Pang Xuelin.

There is life on planet five.

This is the first message Murphy sent back to the Eternal Night via the relay communication satellite.

Immediately afterwards, there is a large description of planet No. 5.

Planet 5 has a complete atmosphere,

Among them, oxygen accounts for 24%, nitrogen accounts for 73.4%, various inert gases such as argon account for 1.7%, and the remaining 0.9% is various gases such as carbon dioxide, hydrogen, and ozone.

There is no ocean on planet 5, but there are many large and small lakes and rivers.

Moreover, the direction of the river on planet 5 is from north to south or from south to north as a whole.

The poles are covered with glaciers and plateaus, and the water of these lakes and rivers mainly comes from the meltwater of the glaciers at the poles.

The surface of the planet is covered with large tracts of forests and grasslands.

Surface moisture is evenly distributed, and deserts are almost non-existent.

In addition, there are many wild animals that Murphy has never seen before on this planet.

"It's really strange. Planet No. 5 is simply the most suitable habitat for human beings. After Murphy entered, why did he suddenly lose contact with the Eternal Night?

Could it be that Murphy encountered some kind of irresistible and powerful creature on this planet?

But thinking about it, it was unlikely. Even if some powerful creature attacked Murphy, it would be impossible to block the connection between the shuttle and the communication satellite in the synchronous orbit.

Or was there a problem with Murphy's shuttle that caused the communication with the Eternal Night to be interrupted? "

Pang Xuelin couldn't help frowning.

"Tas, does the encrypted message contain the coordinates of Murphy's location when he landed?"

Pang Xuelin said in a deep voice.

"Yes. But..."

"But what?"

"However, the pictures sent back by Murphy show that the area where she landed is a transition zone between grassland and forest, and there is a lake nearby. But according to the coordinates she provided, the satellite photos show that there is only forest in that area..."

"How could this be? Could it be that there is a problem with the coordinates returned by Murphy?"

"I don't know. Tass can only give an answer after the shuttle draws a global topographic map for comparison."

"Okay, Tass, from now on, the shuttle will maneuver on the ground track to draw a global topographic map."

"receive."

...

In the next few days, in addition to drawing the global topographic map, Pang Xuelin spent the rest of his time analyzing the data of the No. 5 planet formed by the shuttle.

But no matter from which angle it is analyzed, planet No. 5 has a complete ecological circle, and the natural environment is completely in a state of original ecology, and has not experienced any development of intelligent civilization.

"Tas, it seems that we can only find the secret of Murphy's lost contact only by going deep into the interior of planet No. 5."

Looking at the emerald-like planet under the porthole, Pang Xuelin said in a deep voice, "Let's go."

The shuttle turned over lightly, and floated down towards the dark green planet below.

Three hours later, the shuttle stopped a thousand meters from the surface of the planet.

What appeared in front of Pang Xuelin was a majestic green world.

There are tall trees, the short ones are nearly a hundred meters, and the tall ones reach four to five hundred meters, and the branches and leaves spread out like canopies.

Small trees cover an area of ​​tens of acres, and large trees cover an area of ​​hundreds of acres.

Countless creatures live on every giant tree, and these creatures form a complete ecological chain.

There are strange fungi growing on some trees, and the spores blown by the wind swim among the trees.

There are huge flying birds, nimble monkeys, squirrel-like animals that look cute but have sharp fangs...

There are also giant pythons as thick as buckets, beasts with sharp fangs like tigers and leopards, and flying eagles with wings stretching tens of meters...

This is a vibrant, primitive and wild world.

Pang Xuelin drove the shuttle and flew around the fifth planet at an average altitude of about 1,000 meters.

Then it flew straight to the landing point that Murphy sent back.

"Captain Pang, what's wrong with you?"

Seeing Pang Xuelin frowning, standing in front of the front window, Tas came up curiously and asked.

Pang Xuelin shook his head and said, "It's perfect."

Tass said: "Isn't perfection great? This is an excellent habitable planet."

Pang Xuelin shook his head and said: "The essence of the universe tends to be chaotic, but the essence of life is to pursue order and perfection. Tass, do you think that these newly enlightened creatures can form such a perfect ecosystem? ?".

Tass said: "Captain Pang, do you mean that there are intelligent civilizations on this planet?"

Pang Xuelin shook his head with a smile and said, "I don't know."

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