Recruiting at Mercury

The temperature of our earth is relatively suitable, while the temperature of mercury is very high. On the side facing away from the sun, the highest temperature can reach 430℃, and on the side facing away from the sun, the lowest temperature can reach MINUS 160℃. Therefore, the temperature difference between day and night of Mercury is very large, almost reaching 600℃. Mercury, like the earth, has a direct point of the sun, and receives relatively little solar radiation in the polar regions, and may even have some permanent shadow areas. These permanent shadow areas are permanently dark because they are not exposed to the sun, and the temperature will be very low.

As the depth of SCINI gradually deepened in the ice cave, when it reached the place near the bottom of the ice layer and was about to enter the water body, the researchers found that the glassy ice wall turned brown and the transparency was slightly lower. The ice layer at the bottom of 20 meters contains a lot of carbon-rich fragments, which were formed when glaciers moved slowly on land thousands of years ago. There are more than 20,000 kilometers of grounding areas hidden under the ice, which surround the Antarctic coast and form a huge and thriving ecosystem.

The outermost two wooden planets in the planet are very close in mass and volume. The radius of Neptune is 3.9 times that of the earth. The mass of Uranus is about 14 times that of the earth, and that of Neptune is 17 times that of the earth. When people use Newton's law of universal gravitation to calculate the orbit of Uranus, they find that there are many differences between theoretical calculation and actual observation, so they guess whether there are planets affecting Uranus and calculate the orbital position of unknown planets.

When we observe on the earth, mercury is located on the west side of the sun, which is called the distance to the west side of mercury. We should observe mercury before the sun rises in the morning. Mercury will appear in the eastern low altitude at dawn. If mercury is located in the east of the sun, it is called the distance to the east of mercury. We should observe mercury after sunset in the evening. At dusk, mercury will appear in the western low altitude.