Mercury is a small, rocky planet. It is the closest planet to the sun. During the day it can reach 467 degrees Celsius on the surface of Mercury, but at night it can drop to -170 degrees Celsius. Mercury is 57,909,175km from the Sun. Its radius is 2439.7 km.
Venus is the second closest planet to the sun, and the closest planet to earth. Venus is covered in thick clouds that reflect sunlight, and it is usually the brightest planet we can see in the sky at night. Venus is 108,208,930km from the Sun. Its radius is 6,051.8 km.
Earth is the only planet in our solar system known to have life. It is the third planet from the sun. Earth is mostly covered in water. The Earth has one moon. The Earth is 149,597,890km from the Sun. Its radius is 6,378.14 km.
Mars is a small rocky planet with ice caps on its poles. It has many volcanoes and is occasionally covered by dust storms. Mars is the fourth planet from the sun. Mars is 227,936,640km from the Sun. Its radius is 3,397km.
Jupiter is the largest planet in our solar system. It is the fifth planet from the sun. It has four planet-sized moons and many smaller moons; 63 in total. Jupiter is 778,412,020km from the Sun. Its radius is 71,492km.
Saturn is the second-largest planet in our solar system, and the sixth from the sun. It is surrounded by rings. Saturn is 1,426,725,400km from the Sun. Its radius is 60,268km.
Uranus is the seventh planet from the sun. It takes 84 years to travel around the sun. Uranus is 2,870,972,200km from the Sun. Its radius is 25,559km.
Neptune is the eighth planet from the sun. It was discovered by mathematical predictions, not with a telescope. Neptune has 13 moons; the largest is called Triton. Neptune is 4,498,252,900km from the Sun. Its radius is 24,764km.
Pluto was once known as the ninth planet and most distant from our sun. It was discovered in 1930, and was downgraded to a "dwarf planet" in 2006. Pluto has a moon called Charon, which is the smaller dot in the top part of the picture. Pluto is 5,906,380,000km from the Sun. Its radius is 1,151km.