Well, when you strip away the vegetation and atmosphere, it always feels like Mars is a bit ...... Not too round!

It seems that half of Mars is a little thicker than the other, just a little thicker, and you can't really see the difference if you don't look closely.

Meng Yang sped up the rotation speed of Mars, and when Mars rotated rapidly, this off-axis feeling was very obvious, but it shouldn't be!

If a planet of Mars' size is eccentric, then through a long rotation, this eccentricity will automatically adjust to balance the eccentricity through various stresses inside the planet and the movement of the mantle and crust.

However, Mars does have an eccentricity, although it is very slight, but the difference can be seen with the naked eye, which means that there can be a difference of thousands of meters between the high and low hemispheres of Mars.

How could this happen?

It's weird!

Meng Yang was a little puzzled, he mobilized satellites to measure the specific data of Mars, and it was obvious from these data that Mars did have eccentricity, not his illusion.

It is very strange that one hemisphere of Mars is more than 1,000 meters lower than the absolute height of the other hemisphere, and the height of the low-lying hemisphere is not significantly reduced at the edge of the hemisphere, and when you advance from the edge of the hemisphere to the center of the hemisphere, the height will gradually decrease, and it will be almost 2,000 meters lower than the other hemisphere in the most central area.

Meng Yang carefully measured the low-lying hemisphere and found that it was irregular, and it cut obliquely across the equator and the polar circle, almost encompassing the ancient seabed of Mars.

Very strange structure!

Although the geological activity of Mars is not active, Mars also has a flowing mantle, and with this mantle, there will be no large area of weight deviation on Mars, otherwise gravity will naturally correct this deviation, let the mantle swallow up the excess weight, and automatically distribute this part of the weight equally.

But the truth is that Mars does not have this weight deviation in the mantle, and Mars has been rotating in an eccentric state.

Then there is also the possibility that this eccentric state has not been formed long ago, and it is not long enough for the Martian mantle to erase this deviation.

What happened to Mars?

Meng Yang became more and more curious, maybe tens of thousands of years ago, maybe hundreds of thousands or even millions of years ago, something terrible happened to Mars, causing one of the hemispheres of Mars to become thinner.

What will it be?

Meng Yang wanted to find out, he called the satellite to give Mars a comprehensive physical examination, all the available detection methods came over, and thoroughly examined Mars from the inside out.

The probe satellite scanned a large amount of detection data, which was directly handed over to Dr. Octopus for data processing, graphized and then provided to Meng Yang.

The data generated a digital model of Mars, a hologram that was in full view from the Earth's core to mantle to the Earth's crust.

Meng Yang started from the lowest crust to check and compare, and constantly calculated the thickness and roundness of each layer of the crust to find the starting point of eccentricity.

The geological activity of Mars is relatively weak, and the movement of the vicissitudes of the sea is not frequent, so Meng Yang can clearly observe the stratification of the Martian crust, and the continuity and integrity of the different strata are very good.

After some careful examination and comparison, Meng Yang found that under the surface of Mars, under the hundreds of meters of Martian dust, the low-lying hemisphere was not actually compressed, but the stratum that was more than 2,000 meters thick was cut off......

It's like a layered onion, which has been cut horizontally, and the neat and orderly stratum has been cut off several layers, thus creating a low-lying hemisphere.

Take a planet, a planet as big as Mars, and cut off the stratum more than 2,000 meters thick......

It's a test of imagination!

What happened?

Meng Yang felt as if he was challenging the mystery of the universe, and if this mystery was revealed, he might be able to discover an even more peculiar cosmic phenomenon.

Meng Yang chose several points in the low-lying hemisphere, some in the most central position, some near the edge, some in the ancient seabed, and some on the high mountains.

He sent a few drill worms to dig at these points, and he wanted to see what was going on on under the surface of the Martian dust, the stratum that had been cut away.

The Drillworm at the edge was the first to complete its mission, digging through the Martian dust, and beneath the Martian dust, there was a distinct monolithic rock base.

The drill worm turned on the light on its head, and a strange sight appeared in front of Meng Yang's eyes, under the heavy Martian dust, there was actually a very smooth, glass-like round and flat base.

"Dig! Keep digging down! ”

The drill worm immediately raised its head and plunged into the rock base like a dive, and the head of the drill worm slowly drilled into the rock and gradually drilled downward.

As the drilling deepened, Meng Yang observed a peculiar phenomenon, the rock base was almost hundreds of meters thick, and this thick rock base was completely cemented, like a huge rock. Underneath the rock base, soil and rocks of various forms appeared, turning into strata of normal form.

Soon, other drillers completed their mission, and after digging through the Martian dust layer, they found the same shape of rock substrates everywhere, and although the materials of these rock substrates were very different, they were exactly the same.

Based on the results of drilling in various places, as well as satellite remote sensing data, in this low-lying hemisphere, under the thick layer of Martian dust, there is a huge rock cover with a thickness ranging from tens to hundreds of meters, which is shrouded in the surface of the hemisphere, uniformly, continuously, and solid......

It's like a lid that is changed over the strata, or rather, it's like a melon skin hat that is worn on the strata of Mars.

Correspondingly, the normal hemisphere, this rock cover is not found, and this rock base exists only in the low-lying hemisphere of Mars.

Meng Yang collected samples of various rock substrates and conducted a special analysis, and the rock substrates in various places basically showed traces of high temperature and overfire, but there were obvious differences with the morphology of volcanic lava.

The rock substrate has a similar structure and characteristics, and it would be inappropriate to say that this is a lava outflow from the mantle, and even a volcanic eruption would not have been able to form such a uniform and large area of cemented rock.

Except in the early days of Mars' formation, when the whole of Mars is a huge magma ball, it is possible to form such a large area of slab rock when it cools. The problem is not, the other half of Mars is normal.

What the hell is going on? Meng Yang was confused......