Dwarf Planet Pluto

Astronomers believe that Mercury might be the core of what used to be a much larger planet due to its large metallic core relative to its size and lack of a substantial mantle. This hypothesis suggests that a collision with another large body stripped away much of its outer layers, leaving behind the dense core that we observe today.

Uranus is closer to the sun than Pluto. Uranus is the seventh planet from the sun, while Pluto is considered a dwarf planet and orbits beyond Neptune in the Kuiper Belt.

The larger the radius of your orbit from a common center, the farther the distance you would be traveling around that object as is the case with planets farther from the sun. Substantially, planets have lower masses than the sun, thereby weaker gravitational interaction, lower space velocity, which makes them "creep" slower in their orbits. If you place a star, say the same mass as the Sun in the orbit of Neptune, the time it takes for the two stars to complete one revolution around each other would be shorter.

Kepler-22b is about 620 light years or about 3.6 quadrillion miles away. It works out to the same whether you use Pluto or Earth as a reference point, as our distance to Pluto is tiny compared with our distance to Kepler-22b.

It is not considered a planet anymore, so yes, you could say that.

No.

This is a case of "correlation does not imply causation". In our solar system, the planets closest to the star are terrestrial planets and the planets farther from the star are gas giants. After the gas giants are the dwarf planets which are also terrestrial. That order can easily be changed. In other solar systems it is quite possible that the gas giants would be the planets closest to the star at roughly the same distances as the terrestrial planets are in our solar system.

The dwarf planet discovered in 2004 is Haumea. It was officially recognized as a dwarf planet by the International Astronomical Union in September 2008.

They are larger and so they have more gravity.

The first controversy over Pluto is that its orbit is not in the same plane (flat) as the rest of the planets. It also has different characteristics from the other planets. Some think that it is a comet that lost its moisture and was captured by our Sun's gravity.

Neither. A meteor is not a planet. A meteor is a piece of rock or metal falling through the atmosphere.

the closer the smaller orbit (a year is one complete orbit) so the year is smaller

Pluto and its atmosphere never gets close to the sun. If it has an atmosphere, it is totally frozen. If it has an atmosphere and it gets closer to the sun, Pluto probably does not have enough gravy to hold on to its atmosphere as the planet warms up. If something happened and sent Pluto toward the sun so that it heated up it would start losing its atmosphere. First the Nitrogen would melt. Then it would turn into a gas. Then the gas would leak off into space. Methane would melt and then evaporate. Carbon Dioxide would likewise melt then evaporate away. A few other gasses would join them. Then the rocks would be left.

No, Venus is not colder than Neptune. Venus has higher surface temperatures due to its thick atmosphere, greenhouse effect, and proximity to the sun, while Neptune is much colder as it's located much further from the sun in the outer solar system.

that Pluto should disapper cause

Give that Jupiter's mean radius is 69,911 kilometers and Mars' radius is 3,396 km, you would be able to line up about 20 Mars across Jupiter. For comparison you could line up 11 Earths across Jupiter.

In terms of volume you can fit 8,724 Mars and 1,321 Earths inside Jupiter.

It takes time for the effects of a Coronal Mass Ejection (CME) to reach Earth because it travels through the solar wind, which is not instantaneous. The solar wind is a stream of charged particles that takes around 1-4 days to reach Earth from the sun. Once the CME particles reach Earth, they can interact with our magnetosphere, causing geomagnetic storms and potentially disrupting technology like satellites and power grids.

Saturn has six major moons: Titan, Rhea, Iapetus, Dione, Tethys, and Mimas.

An asteroid or comet colliding with a planet could have a significant impact, causing widespread damage and potentially leading to mass extinctions. Other objects, such as space debris or artificial satellites, could also pose a threat if they were to collide with a planet.

There is a relationship between the planets distance from the sun and the time taken for one orbit (planets year), described in Keplers third law. The square root of the time taken to orbit the sun is proportional to the cube of the average distance between the sun.

Pluto was reclassified as a dwarf planet in 2006 due to its size and characteristics differing from the traditional definition of a planet. While it is a fascinating celestial body, its classification as a dwarf planet is based on well-defined criteria set by the International Astronomical Union.

No, it is 3,627,000,000 miles from Earth. Now that may not be far in comparision with stars and such, but because it is so tiny, and also not in the near vicinity of a bright object (and does not itself generate light) that makes it invisible to the naked eye.

The planets stay in their own orbit due to the gravitational pull from the sun. This gravitational force acts as a centripetal force, keeping the planets in orbit. The balance between the forward motion of the planet and the inward gravitational pull from the sun maintains the planet's orbital path.

Pluto is still there. The only thing that happened is that in 2006 a definition for what qualified as a planet was created and Pluto did not qualify, so it was demoted. It is now classified as a dwarf planet.