Chapter 1760: Flying to Mercury
Chapter 1760 Flying to Mercury
After hearing what Zhao Zhongyao said, Feifei thought for a while and said, "Dad, so the star map we see now is the most accurate star map. In the future, we can explore according to this star map." up. '
After hearing Feifei's words, Zhao Zhongyao said, 'That's right, we can explore according to this star map in the future. In this way, we can quickly find the twelve amethyst gemstones. '
'Okay, let's move on! ’ Feifei laughed.
'Next stop, Mercury. 'Zhao Zhongyao began to drive the spaceship to accelerate towards Mercury.
The closest distance from Venus to Mercury is more than 50 million kilometers, and the farthest is 160 million kilometers. But for Zhao Zhongyao and the others' flying saucer spacecraft, this distance is nothing. The spacecraft they drive can fly to Mercury very quickly.
Now Zhao Zhongyao is flying towards Mercury in the spaceship. Although it may take more than 100 million kilometers to fly from their place to Mercury. After all, at this time, Venus is relatively far from Mercury.
But for the spaceship that Zhao Zhongyao and the others were driving, this distance was nothing. Their spaceship can still fly there very quickly.
On the way to Mercury, Feifei looked at Zhao Zhongyao and asked, "Dad, what kind of planet is Mercury?" There should be no water on Mercury! '
After hearing Feifei's words, Zhao Zhongyao smiled and said,'Although Mercury is called Mercury, there can't be water on it. Mercury is a very hot planet. Of course, this refers to the side of Mercury that faces the Sun. The side of Mercury facing away from the sun is not only not fiery. On the contrary, the side of Mercury facing away from the sun is very cold. '
After hearing what Zhao Zhongyao said, Feifei said again, ‘Dad, can you tell us something about Mercury. I want to learn a little about Mercury first. '
After hearing what his son said, Zhao Zhongyao said,'Okay then! I'll tell you a little more about Mercury. '
Next, Zhao Zhongyao told his son some knowledge about Mercury.
The surface of Mercury is very similar to the moon, full of craters, great plains, basins, radiation lines and cliffs. In 1976, the International Astronomical Union began to name the craters on Mercury. The surface of Mercury is dotted with large and small craters, including mountains, plains, and daunting cliffs.
According to statistics, there are thousands of craters on Mercury, and the slopes of these craters are gentler than those on the moon. The average surface temperature of Mercury is about 452K, and the variation ranges from 90-700K, making it the planet with the largest temperature difference. During the day, the temperature in direct sunlight is as high as 427c, and at night when the sun is not shining, the temperature drops to -173c. It can be compared with the earth, the temperature change on the earth is only 11k (here is only the solar radiation energy, without considering "season" and "weather").
The sunlight on the surface of Mercury is 8.9 times stronger than that of the Earth, and the total irradiance is 9126.6w/㎡. Surprisingly, radar observations made in 1992 showed ice at Mercury's north pole. These ices are believed to exist at the bottom of craters where sunlight never reaches, accumulating as a result of comet impacts or gas from the planet's interior bubbling up to the surface. With no atmospheric regulation, the temperature in these places is constantly maintained at around minus 280 degrees Fahrenheit (about -173 degrees Celsius). Mercury's surface exhibits large steep slopes, some hundreds of kilometers long and three kilometers high. Some lie across the outer ring of the crater, while others have steep slopes that suggest they were formed by compression.
It is estimated that the surface of Mercury has shrunk by about 0.1% (or about 1 kilometer in planetary radius)! The surface of Mercury has been hit by countless meteorites and is full of potholes. When Mercury is hit by a huge impact, a basin is formed, surrounded by mountains. Beyond the basin are impact ejected material, and flat lava flood plains.
In addition, during the evolution of Mercury over billions of years, many folds, ridges and cracks have been formed on the surface, interlaced with each other. Mercury's craters are very similar to the moon. One of the most notable features on Mercury's surface (only the parts that have been photographed) is an impact crater with a diameter of 1360 km:
Calorie Basin is the hottest region on Mercury. Like the Moon's basin, the Calorie Basin was likely formed in a major collision in the early solar system, which probably simultaneously created the strange topography on the other side of the planet facing the basin.
Mercury's topography is marked as undulating because of the wrinkling of the outer shell caused by the cooling and contraction of Mercury's core billions of years ago. Most of Mercury's surface consists of two distinct age layers; the younger is flatter, perhaps as a result of lava intrusion into the earlier terrain. In addition, Mercury has a "significant" "periodic expansion".
Observing Mercury from the ground, you can hardly see its details. The surface of Mercury is dotted with large and small craters, including mountains, plains, and daunting cliffs. According to statistics, there are thousands of craters on Mercury, and the slopes of these craters are gentler than those on the moon.
Mercury is the planet with the most dense white bands in the solar system, second only to the earth. Based on this, scientists estimate that there must be a super-large core inside Mercury, and its core mass can even account for 2/3 of its total mass, while in contrast, the mass of the earth's core area only accounts for 1/3 of the total mass of the earth . The view of the scientific community is that during the violent impact era in the early days of the solar system, Mercury suffered a severe impact, causing it to lose a part of its shell with a lower density, thus leaving a relatively denser part.
Mercury has two geologically distinct plains. Between the craters, the gently rolling, hilly plains are the oldest visible regions on Mercury's surface, predating the violent craters
terrain. These cratered plains appear to have obliterated many older craters, and lack craters below 30 kilometers in diameter and smaller. It's unclear whether they are of volcanic or impact origin, but these buried plains are roughly evenly distributed across the planet's surface. Flat plains are extensive flat areas covered with depressions of various sizes, very similar to the moon's seas.
It is noteworthy that they are extensively encircled around the Calori Basin. Unlike the mare, Mercury's flat plains have the same albedo as the ancient, cratered plains. Despite the lack of definitive volcanic features, the localized platforms and rounded, split shapes strongly support the volcanic origin of these plains. It is worth noting that the formation of all Mercury flat plains is later than that of the Calori Basin. Comparing the density of small craters detectable on the calori eruptive overlay, it can be seen that the floor of the Calori Basin is filled with unique plain geology, Broken ridges and rough polygon shattering.
It's not clear whether the impact induced the lava, or whether the impact caused the massive melt. An unusual feature of the planet's surface are numerous compression folds, or cliffs, staggered across the surface of the plain. As the planet's interior cools, it likely shrinks slightly and the surface begins to deform, causing these features. Depressions are also seen on top of other terrain, such as pits and smooth plains, suggesting that these folds are only now forming. Mercury's surface is also warped by the sun -- the sun's tidal force on Mercury is 17 times stronger than the moon's on Earth.
Zhao Zhongyao now told his son some knowledge about Mercury. After Feifei heard it, he felt that Mercury is a planet with no interesting places. Relatively speaking, it may be more fun on Venus.
‘Dad, there doesn’t seem to be anything interesting on Mercury! It's just a deserted and silent planet like the moon. Feifei looked at Zhao Zhongyao and said.
After hearing what his son said, Zhao Zhongyao said again,'We can only know what kind of planet Mercury is after we get to Mercury. Now we can't say what kind of planet Mercury is.
Before, we thought Venus was hell on earth. But when we actually landed on Venus, we discovered an underground forest by accident. Inside, there are all kinds of prehistoric animals.
Although Mercury is very close to the sun. But Mercury is tidally locked to the sun. On the side facing the sun, the temperature is more than 400 degrees higher. But on the side facing away from the sun, the temperature is very low. It can be said that Mercury is a world of ice and fire. This point may not be the same as Venus. Almost the entire surface of Venus is hellfire. But that's not the case on the surface of Mercury. '
‘Dad, so, after we reach Mercury, we may also have some unexpected discoveries. Will we still see some magical creatures after we reach Mercury? Feifei looked at Zhao Zhongyao again and said.
'It's hard to say, but since we can find life on Venus. It is possible to find life on any other planet. '
Zhao Zhongyao felt that although Mercury is very close to the sun. But it is a big planet after all, and compared to a single life, there are many places on a planet where they can live alone.
‘Dad, then we should be able to discover some miraculous life when we go to Mercury this time! ’ Feifei said again.
'I hope so! If there is no miraculous life, wouldn't it be meaningless for us to go to any planet! In fact, life should have been ordinary matter in the universe. On any planet, there should be traces of life.
Of course, not every planet can have advanced intelligent humans like the earth. But on some planets, there should be some low-level life, which is very possible. Zhao Zhongyao said again.
'Dad, let's go to Mercury now! I want to see what life on Mercury looks like. ’ Feifei was on Venus, after that expedition, he became more and more interested in extraterrestrial life.
'Okay, let's hurry up to Mercury and have a look. I feel that there should be life on Mercury. Zhao Zhongyao said so.
'Why, why does Dad think so! Feifei also asked the same question.
‘That’s right, since we found the amethyst gemstone on Venus, there are many magical lives. There is also an amethyst gemstone on Mercury, so there should be magical life on Mercury. '
From the environment where the amethyst gemstones of Venus existed, Zhao Zhongyao thought that if there were amethyst gemstones on Mercury, there should also be life.
After hearing what his father said, Feifei felt that it made sense. Since amethyst gems are always connected with life, if there are amethyst gems on Mercury. There should also be life.
He didn't say anything for a long time every day. When he heard his father and brother talk about the relationship between the amethyst gem on the Venus and life, she interjected and said, "Dad, so the amethyst on the Venus That piece of underground forest. The reason why it exists is not related to this amethyst gemstone. Are the many creatures there also related to this amethyst gem? If we take away this amethyst gem now, will the life on Venus be affected? '
Zhao Zhongyao heard Tiantian's words and said,'This shouldn't have much impact. After all, the underground forest on Venus is a separate world. It has nothing to do with the environment of Venus. Moreover, we only use this amethyst gem. After we use it, we will put this amethyst gem back. In this way, it will not have any impact on life on Venus. '
I listened to dad every day
If so, he nodded. I feel that what my father said makes sense. They are only using this amethyst gem temporarily. After they use it, they will put this amethyst gem back.
Now Zhao Zhongyao drove the spaceship to Mercury again. It's just that if they fly towards Mercury in this way, it's almost like flying directly towards the sun.
At this moment, Feifei looked at his dad and joked, 'Dad, are we just moths to the flame? '
After hearing Feifei's words, Zhao Zhongyao was stunned for a moment, not understanding what Feifei meant by this.
‘Feifei, what do you mean by that. Aren't we flying to Mercury! 'Zhao Zhongyao looked at Feifei and said.
‘Dad, but aren’t we also flying towards the sun! And isn't the sun just a huge ball of fire! If we do this, isn't it moths to the flame! ’ Feifei said again.
After listening to his son's words, Zhao Zhongyao understood what it meant to say moths to the flame. So Zhao Zhongyao also smiled and said, Haha, you described it too well, we are now flying towards a big fireball like a moth. '
Tian Tian listened to the conversation between my father and my brother, and joked, 'Dad, then you can grasp the direction. Don't make us fly straight to the sun. '
After hearing Tiantian's words, Feifei smiled and said, 'Sister, what are you talking about! Don't worry about Dad's driving skills! '