Our Sun is not a planet. It’s a star. It creates and radiates its own energy.
The temperature on the sun is 14 million degrees Celsius.
The Moon’s rotation around its axis is slow and synchronized with Earth’s movement, so we will always see the same side of the Moon from Earth.
Mercury does not have an atmosphere, therefore even during day time, if you’re on Mercury the skies will seem completely black. With no atmosphere, rays of light cannot break and light cannot be seen.
Venus rotates around its own axis in the opposite direction from all the other planets of our solar system. Venus’ day takes 243 earth days, and it is longer than its year ! (which takes 225 days).
Mars and Earth are the only two planets located on the band of our solar system. The recent finding of water on Mars adds to the possibility that some time in the past, present or future, life on Mars could occur.
Jupiter is the biggest planet of our solar system. It radiates a bit more energy than it receives from the Sun, and that tells us that it creates its own energy – a feature which is usually related to stars, not planets…
Saturn has 45 moons. Saturn’s rings are probably residue of a long-ago shattered moon.
Uranus lies on its side. Whilst all other planets rotate on their vertical axis – Uranus rotates almost completely horizontally!
Neptune was discovered in 1846. One year of Neptune (the time it takes to go round the Sun) takes 165 earthly years.
Pluto is a dwarf planet. Today it is known that it is not the most remote celestial body in our solar system. Other bodies, of various sizes, are located beyond Pluto and travel around our Sun.