The four inner, terrestrial or rocky planets all have similar densities, much higher than the four outer gas giant planets (though the outer planets are much larger and more massive).
do the densities of the solar system planets fall into two or more groups
In our solar system, the inner four planets, Mercury, Venus, Earth, and Mars, are referred to as rocky, or terrestrial ("Earth-like"). Outside the solar system it is estimated as many as 40 billion planets in our galaxy alone would be similar to Earth.
Yes
Mars has a very similar angle of axial tilt to Earth.
Venus and Earth
mercury, Venus and earth
The four inner, rocky planets are also known as the terrestrial planets. These are; Mercury, Venus, Earth and Mars. The inner planets all have a clear solid surface, unlike gaseous planets. The inner planets do not have a ring system. The inner planets are of similar densities.
they are larger than earth and have low densities.
In order they are : Mercury , Venus , Earth , Mars.
mars
Mars is the only planet that has four similar seasons to Earth's.
in term of shape
do the densities of the solar system planets fall into two or more groups
It's atmosphere is similar like ours on earth
In our solar system, the inner four planets, Mercury, Venus, Earth, and Mars, are referred to as rocky, or terrestrial ("Earth-like"). Outside the solar system it is estimated as many as 40 billion planets in our galaxy alone would be similar to Earth.
Although a lot more massive, the four outer gas giant planets are less dense than the inner rocky planets. The densities of the four inner planets are between 3.94 g/cm3 to 5.515 g/cm3, ehile the outer gas planet densities range from 0.7 g/cm3 to 1.76 g/cm3.
Astronomers have found Earth-sized planets in other solar systems.