Fulton Gap Why are planets that are slightly larger than Earth so rare?

The Fulton notch in the radius of the planets may stem from some kind of law in the formation of the planets, as well as their early days. Since a planet's atmosphere can make up a large part of its radius, many speculations revolve around what could happen in the atmosphere. One possibility is the reverse "Goldilockias principle", where medium-sized rocky planets with atmospheres cannot last, or the planets are large enough to retain their atmospheres.

If the planet is of moderate size, it may not be large enough and will soon lose its atmosphere, which is like a tug-of-war; It's really hard to stay in the middle.

That depends on how big the planet is. If the mass of the planet is large enough, it can have moons larger than the Earth.

The Fulton gap in the radius of the planet may stem from some law of planetary formation.

Large planets are difficult to form, and it takes a long time.

Because it is very difficult for such a large planet to form.

In fact, it may have originated from some problems in the early formation of the solar system.

Because such large planets are very rare.

Because it's hard to survive in this situation until now.

Because there are very few planets that are very similar to Earth.

Because the universe is too big to find.

If we talk about the rotation, the eight planets, including the earth, are turning in exactly the same direction, all of which move from the west to the east sent by God.

If we talk about rotation, the rotation direction of the eight planets is also the same, and it also rotates from west to east. But there is something special about Venus, that is, its rotation period is longer than the orbital period, and the day on Venus is longer than the year. In fact, Venus also rotates from west to east, but the rotation is too slow, and the rotation of Venus is combined with the revolution, as if it is rotating in reverse.

At present, there are no planets other than Earth that can be used for living organisms. The only ones that are more suitable for life survival are Mars and Kepler-78b.

Mars is located in the solar system and is the closest planet to Earth. Mars' rotation period and revolution period are similar to those of the Earth, with four seasons in a year, a meager atmosphere, and a terrestrial planet. But the natural conditions of Mars are not enough for living organisms to survive and need to be artificially modified.

Kepler-78b is a planet discovered by the Massachusetts Institute of Technology in the United States in 2013, 7 million light-years away from Earth. Kepler-78B is similar to Earth in mass, size, and composition, and even surpasses Mars in similarity. But Kepler-78B is too far from Earth, so from an immigration point of view, Kepler-78B is not the first choice.

The area swept by Earth and Mars in a unit of time is not equal. Kepler's second law can only be applied to the same planet, not to comparisons between two planets.

Kepler's second law of planetary motion, also known as the equal area law, states that the lines (sagittal diameters) of the Sun and the moving planets in the solar system sweep over an equal area in equal time. The planet here can only be one, and cannot be compared between two. For example, only the area swept by the Earth at different positions in its orbit can be compared, or the area swept by Mars at different positions in its orbit can only be compared.

You can't compare Earth to Mars.

Definitely, that's where you and I know and live – Earth. However, in the solar system, at this stage, Mars is a planet where life may exist in addition to the Earth, but it is still in the middle of the world. Scientists also speculate that Mercury may have had creatures before.

Beyond the Milky Way, the galaxy that is now speculated to be the most likely to have living beings, even highly intelligent beings, is the Andromeda Galaxy.

Pandora is a fictional satellite in the movie Avatar. The scientific name "Centaur Alpha B-4" is a planet in the Centaur Alpha Galaxy, about the size of Earth. Pandora is not a planet, it is actually a moon of a giant gas planet.

Where does life come from?

The only known thing is the Earth.

Pandora ...

This is not a science and engineering discipline, it should be a scientific research class.

I am not proficient in my studies, and I dare not draw conclusions, and I hope to forgive me.

Gas giants are also known as Jupiter-like, LZ should know the answer, choose C, this kind of planet can be subdivided into hot Jupiter and ice giants, of which ice giants are quite different from Jupiter, experts are considering separating ice giants from traditional Jupiter-like planets;

Mercury, Mars, and Venus are terrestrial planets characterized by small size, high density, slow rotation, and few moons;

The diameter of the Earth is about 12,742 kilometers.

The Earth's equatorial radius is kilometers, the polar radius is kilometers, the average radius is about 6371 kilometers, and the equatorial circumference is about 40076 kilometers. The surface area of the earth is 100 million square kilometers, of which 71% is oceans and 29% is land.

The interior of the earth has a core, mantle, and crust structure, and the outside of the earth has a hydrosphere, atmosphere, and magnetic field. The Earth is the only celestial body in the universe where life is known to exist, and it is home to millions of living beings, including humans.

After the end of World War II, the U.S. Air Force made another more accurate survey using advanced aerial surveying technology. The result is 12713756 meters. In the early 60s of the 20th century, scientists calculated that the diameter of the pole was 12713884 meters with the help of artificial satellites and electronic computers.

In 1976, the International Union of Astronomers announced a figure for the Earth's equatorial radius, based on which the diameter of the pole should be 12713510 meters. Will this figure be revised again in the future? Let's wait and see!

The diameter between the Earth's north and south poles is 12630824 meters. In 1743, the value of the pole diameter was announced: 12707216 meters.

In 1841, the famous German astronomer Bessel carefully calculated a series of data about the Earth. He declared that the extreme diameter of the Earth should be 12712156 meters.

The radius of the Earth's major axis is about 6378 km x2, and the diameter of the Earth's equator is 12756 km

The diameter of the Earth is 6,300,000 meters. Don't believe it. 555。。That's where I read Chinese books.,Elementary school.,My hands are sore.。。 Please, please.

The equator is 40,000 km = , so the maximum diameter of the Earth is 40,000

The Earth's east-west radius is slightly longer, and the north-south radius is slightly shorter, with a difference of only 21 kilometers.

When calculated as a positive sphere, its diameter is 12,742 kilometers.

The average diameter of the Earth is kilometers.

The diameter of the Earth's equator is 12,756 kilometers.

The diameter between the Earth's north and south poles is 12630824 meters, or about 12,631 kilometers.

The circumference of the Earth's equator is 40,076 kilometers.

The circumference of the North and South Poles is 39,900 km.

The diameter of the Earth is about 1,000 kilometers, the circumference of the equator is about 40,000 kilometers, and the radius of the equator is about 6,378 kilometers.

Answer: Generally speaking, the radius of the earth is 6,370 kilometers, so the diameter of the earth is 12,740 kilometers.

The diameter of the Earth is about 12,742 kilometers.

The radius of the Earth's equator is kilometers.

I feel that the diameter of the Earth should include the atmosphere.

According to reports, when a stony asteroid with a diameter of about two kilometers collides with the earth, it will cause a global effect, and its energy will be as high as about 1 trillion tons of TNT, causing widespread famine and disease epidemics, endangering the lives of a quarter of the world's population. Collisions of this magnitude occur once every 500,000 years on average.

65 million years ago, an asteroid with a diameter of 10 kilometers collided with the Earth, causing the extinction of the dinosaurs.

The earth will not, it is living things that die, and to be honest, people will live longer than the earth.