There exist many mysterious astronomical objects in space including celestial bodies or the planets that are continuously orbiting the sun. Some of these planets are found in inner solar system, some in outer solar system and some are known as dwarf planets.

All the known planets are almost circular and contain most of the mass. You can come to know plants facts.

Let’s have a look at the 10 known planets of universe.

10. Newly Discovered Planet

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A planet near to the dwarf planet Pluto, is newly discovered by using the Oschin Telescope at Palomar Observatory near San Diego, California. Planetary scientist Dr. Mike Brown announced this discovery of the tenth planet calling it a typical member of the Kuiper belt. This planet is the farthest but known object in the solar system.

9. Pluto

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Pluto is a dwarf planet discovered in 1930. It is the largest known planet in the Kuiper belt and also the ninth planet of the universe. It is mostly composed of ice and rock and is relatively smaller than other planets.

8. Neptune

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Neptune is one of the four outer planets or the gas giants in outer solar system. It is the eighth planet in the universe and also the farthest planet from the sun. Neptune is 17 times in mass of the earth. It is largely composed of ices such as water, methane and ammonia. The astronomical symbol for Neptune is ♆

7. Uranus

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Uranus is the lightest planet in the outer planets. It orbits the side of the sun and in the gas giants, it has much colder core. Uranus radiates a little amount of heat and also has 27 known satellites.

6. Saturn

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Saturn is the sixth known planet in the universe that is distinguished by its exceptional ring system that is made up of rock particles and small ice. It has 62 confirmed satellites, and the second largest moon in the solar system called Titan.

5. Jupiter

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Planet Jupiter has strong internal heat that creates cloud bands and the Great Red Spot in atmosphere. It is mainly composed of hydrogen and helium.

4. Mars

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Mars is one of the four terrestrial planets in solar system that was named after the Roman god of war, Mars. It is also known as the “Red Planet” due to its reddish surface that appears due to excessive iron oxide on its surface.

3. Earth

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Earth is the only one planet out of ten known planets of universe that has current geological activity and the existing life on it. It has one natural satellite, called the moon. Earth is the densest and the largest planet of the inner solar system and also the only planet where plate tectonics has been observed.

2. Venus

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Planet Venus is only 0.7 AU from the Sun. it is the hottest planet, with surface temperatures over 400 °C. It is much drier than the planet earth and has natural satellite.

1. Mercury

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The closest planet from the sun is the Mercury. It has no natural satellite but apparently it has a global magnetic field. Mercury is composed of a rocky body and is the smallest planet in the Solar System.