Revealing the mysteries of the Earth makes everyone 'startled'

Although humans set foot on the moon, launch other planetary spacecraft, but there are countless mysteries on Earth that we have not 'deciphered'.

Interestingly, even though humans have been able to launch space ships out into space, the mantle layer just below the Earth's crust, we have not yet reached.The depth of the mantle layer is from 30 to 2,900km while the deepest point that the human dug so far is the hole in the ground of Kola in Russia with a depth of 12.3km.

Earth's magnetic poles can move and can even change direction.This has been noted by scientists many times.The last time this change occurred was 10 million years ago and this phenomenon may be recurring but no one knows why.

Astronomers only know that Earth had two moons 4.6 million years ago.The second satellite of the Earth when it collided with the moon today and this event is probably the logical explanation for the question of why the two sides of the moon are so different.

Almost very few people know that earthquakes can also occur on the moon because this phenomenon rarely occurs, mainly due to the tidal forces of the sun and the Earth or the falling meteor.

The Earth is rotating at 1,600km / h and its speed around the sun is faster with 108,000km / h but we don't feel it.

620 million years ago, one day on Earth lasted 21.9 hours and every 100 years passed, the time on Earth extended 70 milliseconds.

The Earth is not a perfect sphere so there are areas with high gravity and low gravity.An example of this is Hudson Bay in Canada.Scientists found that the glaciers here are melting rapidly due to weak gravity.

The hottest place on the planet is Aziziya in Libya with temperatures of up to 58 degrees C. Meanwhile, the coldest place on the planet of Antarctica with temperature can drop to minus 73 degrees C. However, the temperature is observed. The lowest on Earth was recorded by scientists at Russia's Vostok station on July 21, 1983 with minus 89.2 degrees Celsius.

Earth is seriously polluted, it is not new news.But the Earth images taken by astronomers in 1978 compared to 2017 can make people startled by the big change.

The Earth used to be "purple planet" instead of "green planet" as we still call it today.Ancient plants used retinal instead of chlorophyll for photosynthesis, making them absorb green light and red and blue reflections forming purple.

Scientists have discovered a large reservoir of water beneath the Earth's surface about 410 - 660km. This 2.7-billion-year-old lake is formed by the ringwoodite mineral contained in the mantle.The amount of water here is compressed with tremendous pressure and its volume is enough to fill 3 times all the oceans on Earth.This also led to a hypothesis that the oceans may be due to an underground ocean explosion.

After years of evaluating life forms on other planets, scientists discovered some signs that the molecules needed for life to appear on Mars exist in forms in the Gale crater. .Scientists believe that these molecules are not only from landing probes on the red planet, but that long ago, Mars had life like Earth.

1. The 8 biggest mysteries about Earth
2. The mystery about the Earth has not been answered