Tell about our Solar System ?

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How Did The Solar System form?

The Solar System Has Over 100 Worlds

Solar System Facts

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Everything in the Solar System revolves around the Sun. The Sun is a star – a massive ball of hot gas that gives off light and heat.

There are eight planets that orbit around the Sun.

The closest planet to the Sun is Mercury, and the farthest away is Neptune.

The biggest planet is Jupiter, and the smallest planet is Mercury.

The Earth is the only planet that we know has creatures living on it.

The Earth rotates as it orbits the Sun. It takes one day to complete a rotation.

It takes 365 days for the Earth to complete one circuit around the Sun. We call this a year.

The Sun is just one of hundreds of billions of stars in the galaxy that we live in, which is called the Milky Way. The whole Universe has at least 100 billion galaxies in it.

Our solar system is a vast place, with lots of mostly empty space between planets. But out there are comets, asteroids and more rocky, frozen objects (including dwarf planets) yet to be discovered in the Kuiper Belt and Oort Cloud.

You are held onto the surface of the Earth by a force called gravity.

The solar system is made up of the sun and everything that orbits around it, including planets, moons, asteroids, comets and meteoroids.

This is the same force that keeps the Earth and the other planets orbiting around the Sun.

It extends from the sun, called Sol by the ancient Romans, and goes past the four inner planets, through the Asteroid Belt to the four gas giants and on to the disk-shaped Kuiper Belt and far beyond to the teardrop-shaped heliopause.

Scientists estimate that the edge of the solar system is about 9 billion miles (15 billion kilometers) from the sun.

Not everything in the Solar system orbits directly around the Sun. The Moon orbits around the Earth.

Beyond the heliopause lies the giant, spherical Oort Cloud, which is thought to surround the solar system.

The Sun is 93 million miles from the Earth.

For millennia, astronomers have followed points of light that seemed to move among the stars.

The light from the Sun only takes 8 minutes to travel to the Earth, but it would take Usain Bolt – the fastest man on Earth – 450 years to run from the Sun to the Earth.