Voyage of the Stars

The war in the starry sky has ended, but there is more than just war in the starry sky.

On the other side of the galaxy, a planet that human civilization has visited more and more is a different world to this place.

This star field is very empty and quiet, and in the open space, there is such an orange dwarf star. It is a main sequence star with a K-type spectrum and has a longer lifespan than a solar-like yellow dwarf star.

There are only two planets in this orange dwarf star system. One of the gaseous planets is smaller than Jupiter. It does not have rings like Jupiter. Its orbit is so clean that there is not even a satellite.

As the only rocky planet in the star system, its mass is 0.59 times that of the Earth, its diameter is 0.8 times that of the Earth, its average surface gravity is 0.69g, its rotation period is 20 hours, 57 minutes and 33.63 seconds, and its surface calm temperature is 36 degrees Celsius, large amounts of liquid water exist on the surface. It has no satellites like the gas planet, but it does have tidal forces, the source of which is the giant gas planet outside.

Its revolution period is 17.997 years, and one year is almost equal to eighteen years of the earth.

Although this planet has no satellites, it does have a ring as beautiful as the rings of Saturn. Under the light of the orange dwarf star, it presents a charming scenery.

The main components of the atmosphere are carbon dioxide, oxygen, ethylene, water vapor, and nitrogen, with a small amount of other gases harmful to humans. Among them, carbon dioxide accounts for the majority, with a concentration of 86%, oxygen 12%, and the rest are other gases. The rich carbon dioxide gives the planet an excellent insulation layer, with the greenhouse effect reaching 22.4 degrees Celsius and the atmospheric pressure reaching 7 standard atmospheres.

Such an environment is obviously not suitable for human habitation, but there is life here.

This rocky planet has towering mountains, snow-capped mountains, countless towering trees, and dense forests everywhere. It has vast continents and turbulent oceans.

There are also snow-capped mountains that are frozen all year round, but the plants and oceans here are different from those on Earth. The plants on earth are mainly green, but here they are mainly purple. In addition to the different colors, the plants here are generally thicker than those on Earth, which may have something to do with the high carbon dioxide concentration.

Although its sky is also blue, its blue is much lighter than that of the Earth. It looks very clear, but it has no ozone layer.

However, in recent times, such a clear atmosphere seems to have received pollution from industry. The atmosphere in some areas has become a bit turbid, and the ocean that originally reflected the blue color of the sky has also been polluted by some industrial products to varying degrees.

Many species have become extinct as a result, but it is not serious, at least the intelligent life living on this planet has not yet realized this.

The planet's sea also has tidal phenomena. Whenever the planet moves to form a three-star series with its main sequence star orange dwarf star and outer orbiting gas planets, there will be ebb and flow. Obviously, such astronomical phenomena do not occur often, so the tidal cycle of the planet's ocean is very long, about 24 Earth years.

The long tidal cycle makes its oceans basically calm and calm. Only when the temperature difference across the planet causes natural phenomena such as storms, turbulent waves will appear.

Generally speaking, this is a peaceful purple planet.

But just like this planet, fortunately or unfortunately, civilizations from beyond the stars visit it. It can be seen from some stone carvings now placed in the museum that the aliens who came here were a kind of aliens with flying saucer-shaped spaceships. They were tall giant aliens more than ten meters tall.

This is what the intelligent beings living on this planet believe. They initially thought they were some kind of ancestors on the planet, but later they were basically recognized as aliens. This view has informed the textbook on intelligent life for more than fifty years. Years long. But now, some intelligent beings who study ancient history believe that the objects in the museum should represent two different civilizations.

"You see, this stone carving is older and different from the description in the textbook. Experts in relevant academic circles believe that the dish-shaped creature in this stone carving should be an older alien, our ancestors. The people saw it in the ignorant era and carved it on the stone wall as a totem.

The tall stone statue on your right is obviously a product of different eras. Archaeologists have used the latest carbon-14 detection technology to detect that the age of the stone statue should be in our Bronze Age. Scientists are still collecting specific evidence. , here, what I want to tell the students is that our history textbooks may need to be rewritten. "

In a solid concrete building, an intelligent being with a funny dog ​​head was pointing at some strange objects in the exhibition hall and introducing them to a group of kobolds.

It seems that this kobold is engaged in a profession such as a tour guide.

"Look at this, everyone." The kobold tour guide pointed to a rusty pistol that was sealed in a glass cabinet in the exhibition hall: "Does it look familiar? That's right. It's a gun. That gun The pistol that caused a sensation across the continent. What I want to tell you here is that this pistol is not a modern creation, but a weapon of a Bronze Age noble. It was excavated from a Bronze Age Volcano Country site."

"For a long time, we have thought that this was a creation of our ancestors, but people have always questioned this conclusion. Now, the latest authoritative conclusion has come out, that it is an alien creation, that is to say, in During the Bronze Age of our civilization, alien civilizations visited our planet and left their traces.”

Listening to the introduction of the kobold tour guide, among the tourists, a very strong kobold who was about 2.5 meters tall muttered to himself: "The sun sets in the west, the gods return to their places, and light comes to the world. Leading the ancestors into the Heavenly Gate and flying away through the sky. Is it true that the legendary God of Light came to the world and passed away after imparting magical skills? No, no, no, it should be said that the so-called myths and legends are actually the stories of the ancestors. The description of aliens, doesn’t that mean that the ancient legend about the God of Light is actually not a myth fabricated by the ancestors, but a real description of aliens.”

As he spoke, the decorated kobold looked up at the tall sculpture and fell into deep thought. He felt that if the so-called God of Light was an alien, this tall sculpture with a measuring tool shape was probably some kind of armor.

Of course, it is not ruled out that aliens look like this.

As for the specific truth, this kobold believes that perhaps we can follow the records of myths to find the so-called Heavenly Gate.

He remembered that there were also descriptions of the Heavenly Gate in mythological stories. It was said to be the gate of space set up by the God of Light before he left. Through the Heavenly Gate, one could leave this world.

"Heaven's Gate? The Gate of Space." The kobold muttered, and a bold idea came to his mind. He wanted to go on an adventure.