Above: The Apollo 12 Lunar Module in lunar orbit, photographed 19 November 1969 from the Command and Service Modules (Credit: NASA).
99.8% - the amount of the solar system's total mass that is contained within the sun alone.
More facts about the Sun
88 days - the length of a year on Mercury, the fastest orbiting of all the planets.
More facts about Mercury
118 days - the length of time between one sunrise on Venus and the next.
More facts about Venus
5,500°C - the average temperature of Earth's core, as hot as the surface of the sun.
More facts about Earth
14 miles - the height of the martian volcano Olympus Mons, the tallest mountain in the solar system, around 3 times taller than Mount Everest.
More facts about Mars
5,268 km - the diameter of Jupiter's largest moon, Ganymede, bigger even than the planet Mercury.
More facts about Jupiter
270,000 km - the diameter of the outer rings of Saturn, the largest in the solar system.
More facts about Saturn
-224°C - the temperature to which Uranus can plunge, making it the coldest planet in our solar system even though Neptune is further from the sun.
More facts about Uranus
1,300 mph - the approximate speed that winds can reach on Neptune, the fastest in our solar system and faster than the speed of sound.
More facts about Neptune
200 million - the estimated number of objects in the asteroid belt with a diameter greater than 1 km.
More facts about Asteroids