Neptune is the most unknown since it's far away
Mars is the planet known as the red planet
Perhaps the planet "Terra" otherwise known as "Earth".
Earth
Mars is also known as the "Red Planet" due to its reddish appearance caused by iron oxide (rust) on its surface.
The planet Uranus has no solid surface and is composed mainly of gas. It has 27 known moons, not 63. However, the planet Jupiter is made of gas and has 79 known moons.
Jupiter has at least 79 known moons, making it the planet with the most moons in our solar system.
Earth is the only planet known to have liquid water oceans on its surface.
The Earth is Blue or the bio planet. The Earth is known as Blue planet because most of its surface is covered with water.
Only Earth has (in our solar system). That's what makes it so special.
Uranus has at least 27 moons. It is the seventh planet from the Sun and is known for its tilting axis which causes extreme seasons.
Venus
Mars is known as the red planet due to its iron oxide (rust) rich surface, giving it a reddish appearance.