An elegant voice sounded: "Now, please look up and look overhead." Pen, fun, pavilion www. biquge。 info”

Mu Tianyu looked up and saw that the deck on the top of the ship was open, revealing the transparent glass roof.

"The spacecraft is about to sail over the moon, and you can see the real scenery of the moon when you look up, the moon has been the object of people's lust since ancient times, and in many legends, the moon lives on various gods, such as Chang'e, Wu Gang, and Jade Rabbit. Many legendary creatures are also associated with the moon, such as vampires and werewolves. ”

In a moment, a huge full moon almost occupied the roof, as if it would hit his head in the next moment, Mu Tianyu was short of breath, feeling this inexplicable panic, he could clearly see the huge basin and majestic mountains on the moon. It's just that it's completely different from what you see on Earth, it's covered with gray-white dust, and it doesn't have any vitality, and it looks dead and cold.

It is a completely different feeling than the bright crescent moon seen on Earth.

"In 1969, the American astronaut, Armstrong set foot on the moon for the first time on behalf of mankind, and then left that famous saying, one small step for me, one giant leap for mankind."

"In 5000 AD, the first human spaceship officially took off from the moon, with the hope of mankind, flew to the vast universe, from that moment, human beings abolished the AD system, changed the galactic calendar, this year is also set as the first year of the galactic calendar, in order to commemorate this great moment."

"As a satellite of the earth, the moon has been silently protecting life on the earth, although the mass of the moon is only 1/81 of the earth, but the gravitational pull generated by the huge body still attracts countless meteorites that want to crash into the earth, and the countless circular craters on its body are the best proof."

"And the role of the moon is not only to attract meteorites, it also protects the evolution and growth of life on the earth, balances the disturbance of Jupiter on the earth (Jupiter's mass is 318 times that of the earth), helps stabilize the tilt angle of the earth's axis of rotation, and human beings can reproduce safely on the earth, and the moon is indispensable."

Listening to everything about the moon, Mu Tianyu's heart was full of respect, it is really with the guardian of the moon that the creatures on the earth can grow and reproduce safely.

"The spacecraft is about to leave the moon, please pay your respects to the moon again, the guardian of our earth."

Soon, a huge semicircular sphere passed through Mu Tianyu's field of vision, and the spacecraft left the lunar orbit and headed for Mars.

Mu Tianyu looked out through the window, the space was deep and calm, and a few stars in the distance decorated the sky, looking lonely and empty. In the face of the vastness of the universe, human beings are so small.

He watched intently, and he didn't know how long it had been before that pleasant voice sounded again.

"Dear passengers, the spacecraft will reach the orbit of Mars, which is the fourth planet in the solar system and belongs to terrestrial planets."

"In order to make your journey easy and fun, we have prepared 3D projection technology to show you the real scenery on Mars, so please hold your breath and enjoy the scenery in front of you."

Suddenly, Mu Tianyu's eyes changed, as if he had arrived at the desert of Mars in an instant, with red sand dunes and gravel in front of him, and a dry riverbed not far away, obviously there was a small amount of water on Mars.

The orange-red surface spreads all the way to the sky, and a cold wind blows, making people feel an endless chill. The orange-red color of the Martian surface is due to the fact that it is rich in iron oxide and there is only a small amount of liquid water here, which is not suitable for human survival and habitation.

Soon, Mu Tianyu found a piece of ruins, where the houses had collapsed and deformed, most of them had been buried by sand and dust, and only the roof was exposed, showing the world the glory of the past. This is the site of a Martian colony.

Mars, as the second colony of mankind, also prospered for a period of time, but the climate on Mars was harsh, there was no water source, and the cost of immigration was too high, so in the end human beings had to give up the plan to colonize Mars.

Mu Tianyu looked around curiously and found that there were actually two moons in the sky, and he suddenly remembered that Mars had two guards, Phobos and Deimos.

After watching for a while, the spacecraft sailed away from Mars, and the scenery in front of me gradually faded and disappeared. Leaving Mars, soon the spacecraft came to the vicinity of Jupiter.

The most famous scenery on Jupiter is the Great Red Spot, which is composed of red clouds, the professional term is called a giant anticyclone, where the wind speed is as high as 500 km/h, with the help of 3D projection technology, Mu Tianyu completely felt the excitement of being in a storm.

The spaceship sailed towards Saturn, and from a distance, the luster of Saturn's rings illuminated everything around it, no less than the light of a crescent moon rising in the night sky. Soon the spacecraft passed over Saturn's white ice-like rings, and through the window you could see Saturn's rings of dust and water vapor. Saturn is the only planet with halos among the nine planets.

After several hours of flight, the spacecraft reached the boundary of Uranus, and Mu Tianyu felt the fun of swimming in the ocean of Uranus under the 3D holographic projection.

The liquid ocean can be made up of water, silicon, magnesium, nitrogen-containing molecules, hydrocarbons and ionized substances at temperatures of up to 6,650°C. Due to the huge and heavy atmospheric pressure on Uranus, the molecules are pressed close together, preventing the hot ocean from boiling and evaporating. Conversely, it is precisely because of the high temperature of the ocean that the atmosphere that prevents high pressure from pressing the ocean into a solid state.

Swimming in it is also an alternative experience. If it's a real person inside, I'm afraid that for a moment, there will be nothing left.

After looking at Uranus and then Neptune, from a distance, the dark blue Neptune hangs on the pitch-black curtain, which is somewhat similar to the blue earth.

This is so because Neptune's atmosphere is dominated by hydrogen and helium, as well as trace amounts of methane, which is one of the reasons why the planet is blue.

The most famous of Neptune is the ocean of liquid diamonds, where scientists once exposed diamonds to high pressure and bombarded the surface of diamonds with lasers, turning them into liquid under the action of 40 million times the pressure at zero altitude.

When the pressure is reduced to 11 million times above sea level and the temperature drops to 50,000 degrees Celsius, solid lumps begin to form. The scientists found that something was not what they had expected, and that when the temperature dropped to the point where a solid diamond was formed, the solid diamond formed did not sink, but floated on top of the liquid diamond, like a diamond glacier.

Therefore, many wealthy people have moved their weddings to Neptune, facing the sparkling sea of liquid diamonds, which is truly "a diamond forever, a pile of eternal diamonds"

If you come here for a wedding, please be sure to buy insurance in advance, the atmosphere here is not suitable for human survival.

After several hours of flying, the spacecraft finally reached the edge of the solar system.

The elegant voice sounded again: Ladies and gentlemen, we have now reached the edge of the solar system, the Kuiper belt, where we can see the dwarf planet Pluto, which was once one of the nine planets of the solar system.

Pluto can be described as a bumpy fate, although it was discovered very early and named Pluto, which belongs to the nine planets. But in 2006, the International Astronomical Union passed a resolution that in order to become a planet in the solar system, three conditions need to be met.

First, orbiting the Sun, second, massive enough, and third, clearing objects from adjacent orbits.

Pluto apparently did not meet the two or three of them, so he was kicked out of the list of planets and demoted to a dwarf planet.

In 2500 A.D., through the data sent back by several probes near Pluto, mankind finally found a planet that met the above three conditions! That is, the real ninth planet of the solar system!

It is a giant gaseous planet with a mass of 4,500 times that of Pluto and 10 times the mass of the Earth, and it orbits in a "peculiar arcaneous orbit", so it takes 15,000 years to orbit the sun.

It is a pity that this flight will not be able to see this gas planet, but passengers can see Pluto, on which there is an oval memorial built by humans, which is buried with dozens of probes led by the "New Horizons" probe, all of whom have made outstanding contributions to the exploration of the Kuiper Belt, and mankind will not forget them.

Among them, the "New Horizons" probe is the first time that mankind has launched a probe to Pluto, it flew in space for 9 years before reaching Pluto, the probe's camera, spectrometer and sensors have made detailed observations of the surface and atmosphere of the star, sent back a large amount of precious data, and drew a successful end to the initial exploration of the edge of the solar system by mankind.

It took more than half a day to reach the edge of the solar system. Although Mu Tianyu sat with a sore back and back pain, he felt that the trip was worthwhile, and his eyes were opened.