Mercury

is the first planet from the Sun and is also the smallest and densest planet of the Solar System. Mercury has yet to be entirely mapped, making it the least known planet in our system.

Mercury Observation Progress

Venus

is the second planet from the Sun and is often called Earth's sister due to its many similarities with the Blue Planet. However, a strong greenhouse effect gives Venus the hottest climate in the Solar System.

65 KM -100°C Sulfuric Acid Cloud Layers
50 KM 0°C Sulfuric Acid Haze
38 KM 25°C Troposphere
0 KM 467°C Surface Level

Earth

is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. Sometimes referred to as the Blue Planet, Earth is the only known planet to harbor life.

5.9736 x 1024 kg That's 80 times the mass of the moon
40,075,16 km Equatorial circumference
365 days Complete Orbital Period
-89.2°C to 57.8°C Temperature range

Mars

is the fourth planet from the Sun. Named after the Roman god of war, Mars is often described as the "Red Planet" and is the site of Olympus Mons, the highest known mountain in the Solar System.

Olympus Mons27,000 KM
Mount Everest8,848 KM
Mount Fuji3,776 KM

Jupiter

is the fifth planet from the Sun and is the largest planet of the Solar System. Jupiter has 63 known satellites, the biggest of which are called the four Galilean Moons : Io, Europa, Ganymede and Callisto.

IO Land of Volcanoes
EUROPA Ice Ice Baby
GANYMEDE Larger than Mercury
CALLISTO The Habitable Moon ?

Saturn

is the sixth planet from the Sun and is the second largest planet in our system. Despite its size (9.4 Earths), Saturn's density is so low that it would float on water if there was a large enough ocean.

The origin of Saturn's rings

Almost entirely composed of water ice,
Saturn's rings are believed to
be the remains of a
former moon.

1
2
3

Uranus

is the seventh planet from the Sun and is the coldest in the Solar System. Altough the first pictures taken by Voyager 2 showed a featureless, pale-blue planet, astronomers later discovered the complex atmosphere of Uranus.

Axial Tilt

98°

The atmosphere of uranus

85.3%
Hydrogen

15.3%
Helium

2.3%
Methane

0.01%
Hydrogen Deuteride

Neptune

is the eighth and farthest planet from the sun. Neptune has been approached only once by a man-made object, Voyager 2 space probe, in 1989. Most of our knowledge of Neptune comes from this first and only flyby.