What is Solar System & What is the hottest planet in the solar system?

Today I want to share the more exciting topic that is the solar system, we can also call as Planetary system.

Solar System Drawing for better understanding

Have you ever looked up into the sky and wondered what was there?

Higher than the birds, past the clouds, and farther than the moon, an entire host of fascinating objects spin in space. Let's imagine for an instant that we will leave the world behind, and explore the system that surrounds it. We call it the solar system because everything in it is centred around the sun, and solar means something to do with the sun.

The sun is also called as a star, a bit like many of the celebs that you simply can see within the night sky - just repeatedly closer to us. Still, the sun is very, very far away from the earth, almost 93 million miles away, that's why it looks so small, even though it's the biggest object in the solar system. The sun makes up over 99 percent of the mass within the system. If you put all of the planets, moons, asteroids, comets, and everything else in the solar system together, they would make up less than one-quarter of a percent of it.

The sun is so big that it's more than 100 times wider than the earth, and if it were a giant jar you could fit more than one million earth into it. More than that, the sun is what holds the system together. Its massive gravity is what keeps the planet and every one the opposite planets circling it rather than drifting off into space. The sun is additionally what allows us to live on Earth. Without the sun, there would be no heat. There would be no light. Plants couldn't grow, water would freeze, and zip could survive. The sun gives us heat and light because it's always burning: it's an enormous ball of gas, mostly hydrogen and helium, and it burns at a lot of degrees in its centre. Let's move from the sun now to explore the other planets.

As we move far away from the sun, the primary planet we'll encounter is Mercury. Mercury is that the smallest planet within the system, much smaller than the earth, and one among only five planets you'll see from the earth using nothing but your eyes. Of course, it won't look much like a planet. It looks more sort of a bright star, and lots of nights you'll see it on the brink of the horizon near sunrise and sunset. Mercury is a lot like our moon. It's small and features a rocky surface with craters thereon. It has no moon of its own, and no air to breathe. You probably wouldn't enjoy a visit to mercury, since temperatures are boiling in the sun and cold in the shade. Something interesting about mercury is that it's the fastest planet to travel around the sun, it only takes 88 days.

Next is Venus, the second planet. Some people call Venus earth's sister because the 2 planets very draw in size and gravity, but they're very different on the surface. First of all, it is very hot. Venus is the hottest planet within the system. It's not as close to the sun as mercury, but its thick atmosphere of carbon dioxide helps it to trap the heat and stay warmer than its neighbour. It has a thick atmosphere, but it's not one you'll breathe. It is mostly made of carbon dioxide and there are clouds of sulfuric acid! Venus may not be fun to go to, but it's beautiful to seem at. It is the second-brightest object in the night sky, the only thing brighter is the moon. If you're watching a sunrise or a sunset and suddenly notice what seems like a bright star, you're probably watching Venus.

Next planet is the Earth comes, the third planet from the sun. Of course, you recognize all about Earth, because that is the planet where we live! Earth is what's called a 'Goldilocks planet,' because it's not too hot, and not too cold - it's just right. As far as we all know, Earth is that the only planet to possess living things.

Let's leave earth again for an instant, though, and visit Mars, the fourth planet from the sun. Mars is also known as the 'red planet' because iron oxide (a material like rust) in the soil gives it a reddish colour. Mars is smaller than Venus and therefore the earth, but larger than mercury. It is cold and rocky, with a skinny atmosphere made from CO2 and oxygen. There is water ice on Mars. Scientists are very interested in mars because they think that people could live there with the help of some special equipment. Rockets and probes have already been sent there to gain more information about the planet. Right now, 2 special robots are moving around the surface of Mars, sending information back to earth. Mars is that the first planet we've visited today besides Earth to possess its moons. It has two, although they're not big and round like our moon. Mars's moons are small and irregular. Scientists think they may be captured asteroids. Maybe they came from the big asteroid belt that is between Mars and Jupiter. A belt may be a big ring of asteroids, or rocky objects, orbiting the sun.

Jupiter comes next, the fifth planet within the system. Jupiter is the largest planet and is something called a 'gas giant.' It is called this because it is really big and made mostly of gasses. Jupiter is so big that you simply would need to place 11 piles of earth end to finish just to stretch across its middle. Jupiter is additionally the third brightest object within the night sky, only Venus and therefore the moon is brighter. You can usually find Jupiter higher within the sky than Venus since Jupiter is far away from the sun and not towards it.

It has a minimum of 67 moons that revolve around it, but 55 of them are very small, only about as big as a mountain, or smaller. Some of its moons are very large, and at least two of them are about the same size as the planet Mercury. One of its moons is the largest moon in the solar system. Some of these large moons can be seen from earth in your backyard with a telescope. People cannot land on Jupiter because it's made from gas, there's no ground to land on! Even if there was somewhere to land, Jupiter is roofed by terrible storms, much stronger than even the strongest storms on earth. One storm that we all know about is often seen from earth. We call it the great red spot because that's what it looks like and it has been going on for at least 200 years!

After Jupiter comes Saturn, another gas giant. Saturn is famous for its beautiful rings. Although they appear solid from a distance, the rings are made up of many, many small ice particles, also as rocks and mud. Saturn also has more than sixty moons orbiting around it, some as large as the planet mercury, and much smaller. Something interesting about Saturn is that although it's very large, it's not very dense. That means that if you'll find a tub large enough to place Saturn in, it might float rather than sink! Saturn is that the farthest planet which will be seen from the earth without the assistance of a telescope.

The next planet comes Uranus, the seventh planet from the sun. Uranus is another gas giant, but it is much smaller than Saturn and Jupiter. Unlike any other planet in the solar system, it is tilted so much that it spins sideways! Uranus has rings around it, although they're much smaller than Saturn’s, and 27 known moons. Uranus is covered in blue clouds made of methane, which give it its lovely color. It is coolest planet.

Very similar to Uranus is Neptune, the eighth planet from the sun. Neptune is another Jovian planet, and like Uranus, it's methane in its atmosphere so it also looks blue. Neptune is a darker blue than Uranus and scientists aren't sure why. Neptune features a few thin rings and 14 moons that we all know about. Because Neptune is so far out in space, it makes it a very, very long time to go around the sun. Remember Mercury, that only takes 88 days to travel once around the sun? Poor Neptune takes over 164 YEARS to finish an orbit around the sun. The last time that Neptune was within the same place it's now was before the American war, before computers, phones, aeroplanes, or cars had been invented! Neptune has the longest orbit of any planet within the system.

Now, you'll think that I've forgotten someone - Pluto. Pluto was discovered in 1930 and was listed as the ninth planet in the solar system. As it was studied longer, scientists realized how small it's. It is much smaller than the other planet within the system and even smaller than many other moons. Plus, people began to discover other small, rocky planet-like objects in space near Pluto. Some of them were even bigger than Pluto! In 2006, after 76 years being listed as a planet, Pluto was declared a 'dwarf planet' to point out that it had been something that was sort of a planet, but much smaller. There are at least 6 dwarf planets in the solar system, and possibly many, many more. That leaves us with 8 official planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. I hope you enjoyed exploring the solar system with me today.

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