NASA updates

Our Solar system contains full of stars,planets and many more exciting objects.In has interesting facts inside it.The main thing is the sun and the 8 planets. In general a solar system is a group of planets, moons,dwarf planets around a star.In our solar system,it has four terrestrial planets(Mercury, Venus, Earth, and Mars) and four gas giants(Jupiter, Saturn, Uranus, and Neptune).It also include the planets satellites(moons) and asteroids.The scientists said that, the solar system formed nearly 4.6 billion years ago.Structure of the solar system and some of the interesting facts of the solar system are discussed below.

Sun is actually a star and it is placed in the center of the solar system.It has strong magnetic field and very hot larva inside it.The sun has 99.86% mass of the whole solar system. Sun got energy from it's hydrogen nuclear fusion reactions in core.It contains 70% hydrogen and 28% helium and 2% other elements.

Mercury :

The tiny and nearest planet to the sun is Mercury.It has no moons.It is one of the terrestrial planet.It has a large iron core.

Venus :

The second smallest planet in solar system is Venus.Scientists told that it may contain water at one point of time, but it has evaporated because of over heat. Volcanic activity have been found on its surface but their is no evidence of lava flow.It is also called as "sister of earth" because of its similar size.

 Earth :

The only planet where life exists is our Earth. Because other than earth no planet has living things. It is the only planet having tectonic plates.It has only one satellite ie)Moon. The earths surface creating more oxygen and it has an ozone layer to block harmful radiation.

Mars :

The Second largest planet in the solar system is Mars.It has carbon dioxide atmosphere.It has large amounts of iron-oxide in its surface so that it is looking like red color.It is one of the gas giants.

Jupiter :

Jupiter has 318 times larger mass than earth.It is the largest planet in the solar system.It is formed by hydrogen and helium.It has 63 satellites.

Saturn:

The planet near to Jupiter is known as Saturn. It has a large ring aroung it. The ring is formed by dust and ice pieces.It has 9 bands of ring.It has 60 satellites.Its core consists of iron, nickel, silicon, and oxygen compounds.

Uranus:

The planet before the farthest in the solar system is Uranus.It has 27 satellites.similar to Jupiter and Saturn because its atmosphere contains hydrogen and helium.It is the coolest planet in the solar system.Its temparature is -224 deg C.

Neptune:

Neptune is the eighth and farthest planet from the Sun in the Solar System. Named for the Roman god of the sea.Neptune is the fourth-largest planet by diameter and the third largest planet by mass.Uranus and Neptune are called as "ice cubes"