Nine planets in the solar system

The nine planets in the solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.

1, Mercury: Mercury is the closest planet to the sun. There are many mountains and deep valleys on its surface, and there are also many areas called "drip pits". Mercury rotates very fast, only 88 days a day, and its orbit is very close to the sun, so the surface temperature changes greatly.

2. Venus: Venus is one of the closest planets to the Earth. Its size is very similar to that of the earth, but its surface conditions are very bad. Venus has a high surface temperature and a thick carbon dioxide atmosphere, so humans can't survive on Venus.

3. Earth: The Earth is the home where human beings live and the only living planet in the solar system. The earth's surface is rich in water, oxygen, nitrogen and other essential elements for life, as well as various biological and natural landscapes. The climate and environmental conditions of the earth are relatively stable, which provides good conditions for the existence of life.

4. Mars: Mars is the second closest planet to the earth, with many hills, canyons and deserts on its surface. Mars has a very thin atmosphere and a cold and dry climate, which is not suitable for human survival. But Mars is considered to be one of the important goals for human beings to explore space in the future.

5. Jupiter: Jupiter is the largest planet in the solar system, and its mass is about 2.5 times that of other planets combined. Jupiter's surface is characterized by a large number of gaseous substances and great red spots, as well as a bright star ring. Jupiter's magnetic field is very strong and has an important influence on the surrounding celestial bodies.

6. Saturn: Saturn is the second largest planet in the solar system, with a mass of only about 30% of Jupiter. There are many bright stripes and swirls on Saturn's surface, and there is a very spectacular halo system. Saturn's rotation speed is very fast, and its climatic conditions are also very special.

7. Uranus: Uranus is the seventh farthest planet from the sun. There are many glaciers and mountains on its surface. Uranus' magnetic field is very weak and its axis of rotation is very inclined, which makes its climatic conditions very special.

8. Neptune: Neptune is the eighth farthest planet from the sun, and there are many storms and eddies on its surface. Neptune's magnetic field is also very strong, which has an important influence on the surrounding celestial bodies. Neptune's climatic conditions are relatively stable, but it also has some special characteristics.

9. Pluto: Pluto is one of the farthest planets from the sun. This is a small cold world with many glaciers and mountains on its surface. Pluto's orbit is very elliptical, so its position is very unstable, which also makes its climatic conditions relatively special.

The above contents refer to Baidu Encyclopedia-Mercury Baidu Encyclopedia-Venus Baidu Encyclopedia-Earth.