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Thursday, June 18, 2020

Our solar system

Our solar system

Our solar system

Something interesting about mercury is that it's the fastest planet to travel round the sun - it only takes 88 days. Next is Venus, the second planet. Some people call venus earth's sister, because the two planets are very close in size and gravity, but they are very different on the surface. First of all, it is very hot. Venus is that 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 neighbor. 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 won't be fun to go to , but it's beautiful to lok 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 really bright star, you're probably watching Venus. After Venus comes Earth, 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 a flash , though, and visit Mars, the fourth planet from the sun. Mars is understood because the 'red planet,' because iron oxide (a material like rust) within the soil gives it a reddish color. 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, there are two special robots exploring the surface of mars, sending information back to earth. Mars is that the first planet we've visited today besides Earth to possess its own 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. An 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 earths 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 are brighter. You can usually find Jupiter higher within the sky than venus, since Jupiter is faraway from the sun and not towards it. Jupiter 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 are 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 literally made up of many, many small ice particle, also as rocks and mud . Saturn also has more than sixty moons orbiting around it, some as large as the planet mercury, and many smaller. Something interesting about Saturn is that albeit it's very large, it's not very dense. That means that if you could find a bathtub large enough to put saturn in, it would float instead of sink! Saturn is the farthest planet that can be seen from earth without the help of a telescope. After saturn 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 actually 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. Very similar to uranus is Neptune, the eighth planet from the sun. Neptune is another gas giant, and like uranus it has 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 takes it a very, very long time to go around the sun. Remember Mercury, that only takes 88 days to travel once round 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, airplanes, or cars had been invented! Neptune has the longest orbit of any planet in the solar 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. Goodbye till next time!

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