Space Facts

Saturn is the second biggest planet and famous for its many beautiful shiny rings-including three main and four less dense rings. It also has a large number of moons, with Titan being the most intriguing one.

IN IT'S ATMOSPHERE 96.3% MOLECULAR HYDROGEN 3.25% HELIUM

Mass: 588,319,000,000,000,000 billion kg (the equivalent of 95.16 Earths) Known Moons: 62 Distance from the Sun: 1,426,666,422 km (9.54 AU) Orbit Period: 10,756 days (29.5 years) Surface Temperature: -178 ° C First Record: 8th Century BC Equatorial Diameter: 120,536 km Equatorial Circumference: 365,882 km

The four planets nearest to the Sun are Mercury,Venus,Earth and Mars.All the rocky planets except Mercury are surrounded by a layer of gases but it is so close to the sun the sun has blasted away it's atmosphere.

No Atmosphere Exosphere Containing 42% oxygen 29% sodium 22% hydrogen 6% helium 0.5% potassium

Mass: 330,000,000 trillion metric tons (the equivalent of 0.055 Earths) Known Moons: None Distance from the Sun:57,909,227km (0.39 AU) Orbit Period: 87.97 Earth days Surface Temperature:-173 to 247° C First Record: 14th century BC

Author: Samarjit Singh Taneja

Pluto is the most famous of the dwarf planets. Located far away from the Sun in the freezing cold region at the edge of the solar system. Pluto, was assigned to the new dwarf planet.

Mass: 13,050,000,000,000 billion kg (0.00218xEarth) Diameter: 2372 km (+-2 km) Known Moons : 5 Notable Moons: Charon, Nix, Hydra, Kerberos and Styx Distance from the Sun: 5,974,000,000 km (39.26 AU) Orbit Period: 246.04 Earth years Surface Temperature: -229 ° C. Discovery Date: 18th February 1930 Discovery By: Clyde W. Tombaugh

Venus's thick heavy atmosphere traps the Sun's rays so it gets even hotter than Mercury more than 460°C (860°F) Venus also rotates more slowly than the other planets. One day in Venus would equal 243 Earth days

ATMOSPHERE OF VENUS COMPOSITION: 96.5% CARBON DIOXIDE 3.5% NITROGEN

Mass: 4,967,320,000,000,000,000 billion kg (the equivalent of 0.815 Earths) Known Moons:None Distance from the Sun: 108,209,475 km (0.73 AU) Orbit Period: 224.70 Earth days Surface Temperature: 462° C First Record: 17th Century BC

More than 1,320 Earths would fit into Jupiter. It is also known as the King of Planets. It is a gas giant, made mostly of hydrogen and helium with a small rocky core.

IN IT'S ATMOSPHERE 89.8% MOLECULAR HYDROGEN 10.25% HELIUM

Mass: 1,898,130,000,000,000,000 billion kg (the equivalent of 317.83 Earths) Known Moons: 67 Distance from the Sun: 778,340,821 km (5.20 AU) Orbit Period: 4,333 Earth days (11.9 years) Surface Temperature: -148 °C First Record: 7th or 8th Century BC

Uranus is the seventh planet from the Sun. The planet is incredibly cold. As it spins like in clockwise direction like Venus, the Sun on Uranus rises in the west and sets in the East

IN IT'S ATMOSPHERE 82.5% HYDROGEN 15.2% HELIUM 2.3% METHANE

Mass: 86,810,300,000,000,000 billion kg (the equivalent of 14.536 Earths) Known Moons: 27 Distance from the Sun: 2,870,958,186 km (19.19 AU) Orbit Period: 30,687 Earth days (84.02 years) Surface Temperature: -216 ° C First Record: March 31st 1781 Equatorial Diameter: 51,118 km Equatorial Circumference: 159,354 km

Do you wonder why Pluto is not a planet anymore?

On August 2006 some scientists gathered at the International Astronomical Unit (IAU) IAU gave a new definition to the word Planet According to the new meaning a Planet should meet with the selected categories 1. The object should revolve around the Sun 2. The object should be spherical in shape 3. By its gravity the planet should clear asteroids and dwarf planets out of it's path

But you must be thinking that Pluto is spherical and revolves around the sun? Yes but it does not meet the third condition. It hasn't cleared its orbit.

There are five dwarf planets in our Solar System: Eris,Pluto,Haumea,Makemake and Ceres

The most distant planet of all and the one that takes longest to orbit the Sun is Neptune. Neptune has clouds made of methane and a doomed moon. It has six very faint rings and often experiences raging storms.

IN IT'S ATMOSPHERE 80% HYDROGEN 19% HELIUM 1.5% METHANE

Mass: 102,410,000,000,000,000 billion kg (the equivalent of 17.15 Earths) Known Moons: 14 Distance from the Sun: 4,498,396,441 km (30.10 AU) Orbit Period: 60,190 Earth days (164.79 years) Surface Temperature: -214° C Discovery Date: 23rd September 1846

Our world seems solid and still, but it is actually quite the opposite. Earth, the third planet from the Sun, is not solid throughout. Nor does it sit still. In fact,it is constantly on the move. More than two-thirds of the crust is covered by water

IN IT'S ATMOSPHERE 78% NITROGEN 21% OXYGEN

Mass: 5.972,190,000,000,000,000 billion kg Equatorial Diameter: 12,756 km Equatorial Circumference:40,030 km Known Moons : 1(The Moon) Orbit Distance: 149,596,262 km 1(AU) Orbit Period: 365.24 days Surface Temperature: -88 to 58° C

Age: 4.6 Billion Years Type: Yellow Dwarf Diameter:1,392,684 km Mass:1.99x10^30kg(333,060 earths) Core Temperature:13,599,726°C Surface Temperature:5500°C

Mars is the planet most like than Earth, although it appears very different. The thin atmosphere of mostly poisonous carbon dioxide causes wind and dust storms. Mars,aka the Red planet is the fourth planet from the sun and is the second smallest planet in the solar system.

IN IT'S ATMOSPHERE 95.32% CARBON DIOXIDE 2.7% NITROGEN 1.6% ARGON 0.13% OXYGEN 0.08% CARBON MONOXIDE

Mass: 641,693,000,000,000 billion kg (the equivalent of 0.107 Earths) Known Moons: 2 (Deimos &amp; Phobos) Distance from the Sun: 227,943,824 km (1.52 AU) Orbit Period: 687 Earth days (1.9 years) Surface Temperature: -152 to 20° C First Record: 2nd millennium BC Equatorial Diameter: 6805 km Equatorial Circumference: 21,297 km

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