Often Venus is called Earth's sister planet.
This is because they are similar in size.
However, their other properties such as atmosphere, temperature, etc are different.
"Saturn" of course, but also they call it a "gas giant planet".
Well, we like to call it a sister planet, but yes - it is. Many scientists believe that mars used to look very similar to earth, and have evidence that it used to possess a similar atmosphere and a plentiful supply of water.
There is no planet astronomers here on Earth call "nester". So if there is one it is very far away (in space and time)
Astronomers often call this the planet's year. For Earth that's about 365 and 1/4 days.
Pluto is too small to be an actual planet and is, therefore, a dwarf planet. Astronomers cannot call every rock orbiting a star a planet, and so have removed Pluto's title as a planet.
They call it a "gas giant" planet. That's because it is mainly made of gases (including liquid hydrogen) and it's very big compared with Earth.
The pocket of air that surrounds the earth is called the earths Atmosphere
A planet spins on its axis and also orbits the Sun. People often call both motions"revolving". However, astronomers use the word "rotates" for spin and keep "revolves" for the orbital motion.
Mainly astronomers. But cosmologists and astrophysicists will also be interested in outer space.
Out of all the planets in our solar system it is closest in size to our planet, the Earth. In fact some astronomers call Venus our sister planet. In addition Venus has the characteristics of an earth in which the greenhouse gases have gone to the extreme. A global warming fiasco if you will. I would say these two things make it pretty amazing. Missed being the oasis in the desert of space by that much. Some see it as a cautionary tale for us on our little blue planet.
Phosphorus
It is a syzygy.