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Lets Talk About Space

Myth Cena

space, fascinating night sky filled with stars and flashing lights creating a bautiful scenario right? since the longest time space has fascinated me. lets talk about some space facts So lets start with our home, our mother Earth. Our planet is the third in the solar system. the solar system is the star system consisting of 8 planets, 1 dawrf planet and uncountable space rocks and meteors..our stars name is "the sun" basics right.. the sun is only one of the stars of an approximate 100 billion stars in the "MILKY WAY" galaxy. in our solar system everything part of the solar system revolves around our sun. the sun the same way(the entire solar system) revolves around our galaxy the MILKY WAY. which is called "A GALACTIC YEAR". We’ll dive deeper into it in a minute… back to our solar system, OUR SOLAR SYSTEM We all know about our first 4 planets I.	Venus II. Mercury III. Earth IV. Mars We all been knowing about them since the dawn of time so lets talk about the planets excluding these 4 first planets. Starting with the king supreme of planets, Jupiter. Named after the roman god of the sky and king of all gods. JUPITER In our solar system JUPITER is the largest planet. Experts say that Jupiter is a failed star. If Jupiter was only 80 times bigger than it is right now, it could be a star ( and life on earth would never exist). Jupiter was the very first planet of the solar system. Every planet in our solar system (including earth) was made because of Jupiter. If Jupiter didn’t exist we wouldn’t either. It is a gas giant. Jupiter has 92 moons as of now. It’s largest moon being Ganymade. And of course it has the massive red spot which is a storm going on for nearly 350 years. It produces a wind speed of 432km/h. Jupiter works as a vacuum cleaner. It sucks all the meteors and asteroids to its orbit protecting Earth and Mars from random asteroids hitting our surfaces. Its main gases are hydrogen(81%) and helium(17%) and little sprinkle of water(0.1%). It takes 12 earth years to orbit the sun which means it takes 12 earth years to complete one year in Jupiter. although Jupiter rotates faster than any planet in the solar system. A full day in Jupiter is only 9 hours and 55 minutes. Interestingly Jupiter has rings! 4 rings around its equator but it is so thin that we can’t see them. They are only visible to powerful infrared cameras. Jupiter’s weight is only 318 times more than earth. The first probe to ever reach Jupiter was Galileo. it took the probe 6 years and it only lasted 59 minutes. Since 1973 9 probes has visited Jupiter two of the most famous are voyager 1 and voyager 2. And that was pretty much it about Jupiter the first and the largest planet in our solar system. Now which one is the most beautiful planet in our solar system? Saturn ? of course, its Saturn. The planet with the most beautiful rings orbiting the sun with all its glory.

SATURN The most beautiful planet in our solar system. It’s the 6th planet to the sun and the second largest planet in our solar system. Saturn also has the 2nd largest collection of moons with its 83 moons. It’s largest moon being Titan. In Earth the unicellular organisms are extremely small but if there were any unicellular organism in Saturn’s moons(which is a possibility) it would’ve been very different. Due to cold they would’ve been very big because the bigger the better as they would absorb more heat and nutrients. Astro-biologist Chris McKay affirms that they could be seen with naked eye! A day in Saturn lasts about 10 hours and 14 minutes. Due to fast rotations on its axis Saturn is flattened at the poles. It’s believed that Saturn’s rings were formed from an ancient moon. Which was destroyed in a collision about 50 million years ago. They are feeding on the new moons but astronomers says Saturn’s rings are disappearing and it will completely disappear in less than a 100 million years. The distance between the farthest part of its outer ring to the farthest part of its inner ring is estimated 106000 kms. Saturn has 7 spectecular rings. A single year in Saturn lasts for 29 earth years. Throughout our life time we can only see Saturn in the same position in the solar system for 3 times at most. Saturn’s density is extremely low. It’s the only planet that even less dense than water. So if we could find a large enough body of water for Saturn, instead of sinking it would float. The distance between Jupiter and Saturn is the same distance between Jupiter and the Sun. Saturn has a mysterious perfect hexagon on it’s north pole. It was created because deep thermal convection. It occurs when extremely hot gases travel in a stream jet within the planet. These hot stream jets are many in number and they form different shape. it was founded by David Godfrey in 1987 from exploring the images and the views sent by voyager 1 on its flyby mission in 1981 and later was revisited by Cassini probe in 2006. Cassini was a space probe created by a joint endeavor of NASA (National Aeronautics of Space Administration) ESA (European Space Agency) ASI ( Italian Space Agency) to explore Saturn’s complex ring system and it’s moon’s unprecedented details. Cassini’s mission ended in September 15 2017 and it burned itself after plunging into Saturn in order to protect Saturn’s moon in order to prevent crashing into Saturn’s moons. So it basically sacrificed itself to protect the planet’s moon for which it was created. Such a poetic and heroic death. We will miss you Cassini. With that I would like to end our conversation about Saturn. Which planet has rings in our solar system other than Saturn ? its Uranus. in case you didn’t know.. URANUS Uranus is one of weirdest planet in our solar system. It’s the 7th from the Sun. it’s a completely water body planet. which means that on the surface of the planet there is no solid land there’s only water. It is one of the farthest from the sun but yet its water is in liquid form and it doesn’t form into ice because of water pressure. However there is ice underneath the water but its not because of cold but because the pressure is so intense that the water turns into solid ice but it doesn’t change the temperature. Yeah it’s a weird concept. Uranus has 13 rings. it is the planet with highest number of rings in the solar system. The rings are composed of ice and rocks. Uranus has 27 moons orbiting it. And its largest moon is Titania. The moons orbit really close to each other so it is highly likely that the collision between the moons might occur anytime. A single year in Uranus lasts about 84 earth years. The visually seen color of Uranus is pale blue due to methane which filters the sun’s ray of light which is seen red but it gets filtered by the methane cloud tops. It is also suspected that due to immense pressure of the planet I can contain billions of diamonds. Its distance from the sun is twice as much as Saturn’s distance from the sun. it’s so far away the from Uranus the sun is seen 19 times smaller than it is seen from Earth. Due to its inclination it rotates tilted and backwards as it rotates from north to south while other planets rotates from west to east or east to west(Venus). Astronomers say that it happened because of a earth sized object collided with Uranus creating the tilted rotation. It rotates on its axis in a 97 degree tilt. Unlike other planets where their poles are pointed upwards and downwards Uranus’s poles are directly pointed at the sun. so one of the poles of the planet is the hottest while the other pole is the coldest. Let’s move on to our another water planet Neptune. NEPTUNE Just like Uranus Neptune is a ice giant in the outer solar system. Neptune is the last planet, the 8th and the final planet of our solar system. It is 4.5 billion kms away from the sun. it is the only planet in our solar system that is not visible to the naked eye. Neptune is so far away that high noon in Neptune would seem like a dim twilight on earth. It takes Neptune 165 earth years to complete one orbit. So 1 single year in Neptune is equal to 165 years in earth. Neptune has 14 moons orbiting it. Triton being its largest moon. A day in Neptune lasts only 16 hours. It is the first ever planet that was located by mathematical calculations as it wasn’t visible to the naked eye or any telescope during the 1800s. Neptune is even further than Pluto. It happened because Pluto has an oval shaped orbit rather than round shape like other planets. That brings it inside Neptune’s orbit although both bodies can never collide with each other because of how both cosmic bodies are orbiting the sun. Neptune’s axis is tilted similarly to Mars and Earth. which also means Neptune has different seasons. Neptune consists 4 different seasons but since a single year is 165 years long each of its seasons lasts for over 40 years. Neptune also has 4 main rings. Neptune is the windiest planet in the solar system. Its wind is 3 times stronger than Jupiter and 9 times stronger than Earth reaching speeds of 1200 miles per hour. In 1989 a storm was formed in Neptune as big as the Earth itself called the great dark spot. it was so big in diameter that u can fit an entire earth in it. Its magnetic field is 27 times stronger than Earth Now lets move to our little baby, one of the most beautiful planet or dwarf planet Pluto. PLUTO Pluto is our dwarf planet. Although it is not the only dwarf planet in our solar system, Contrary to popular beliefs. Pluto was discovered in 1930 and it was considered the 9th planet of the solar system for the longest time but in 2006 Pluto was demoted to a dwarf planet by the IAU (International Astronomical Union). It is located in the distant kuiper belt. The kuiper belt is a doughnut shaped ring consisting of space rocks and ice surrounding the solar system. It works as a wall or boundary of the solar system and this is where comets come from. Since its so far away every thing in the kuiper belt is icy. Pluto is the most famous kuiper belt object. Pluto is so small that its size is only equivalent to half the width of USA. Pluto has 5 moons orbiting it. Charon being its largest moon. A single day in Pluto lasts about 153 hours. which means one complete day in Pluto is equal to 6.4 earth days. And a full year in Pluto takes about 248 earth years. its absolutely baffling. Pluto is approximately 3.9 billion kms away from the sun. it takes 5.5 hours for sunlight to reach Pluto. Pluto’s moon charon is half the size of Pluto itself making it the biggest satellite relative to the planet’s size. Pluto’s surface is rocky and filled with mountains. Pluto’s small size and gravitational behavior makes it seem like it doesn’t have any magnetic field like the rest of the planets do in our solar system. Now lets end it with the farthest most distant object in the solar system then we blast off the solar system. ERIS

It is the farthest most distant object in our solar system. The last object in our solar system. It is the largest known dwarf planet but the size is similar to Pluto. But it is 3 times further than Pluto from the sun. Eris orbits the sun from a distance of 10 billion km. now you get it why it’s the farthest from the sun. compared to the distance with Earth it is 68 times further than earth from the sun. a single day in Eris lasts only about 25.9 hours almost similar speed with earth’s rotation on it’s axis but a single year in Eris takes about 557 earth years. Eris has only 1 moon. And it is called Dysnomia. Dysnomia has a circular orbit lasting about 16 days. And that’s pretty much it.

GALAXIES That’s our solar system. Now let’s blast off to new horizons than our solar system. Our solar system is only a little part of our galaxy THE MILKY WAY GALAXY A little grain of sand compared to the milky way galaxy. space is so huge that our closest star system is about 4 light years away. Our solar system is a star system. And there are a star system for every star in the universe. There are approximately 100 billion stars in Milky Way alone. With its own star system. That’s just in one galaxy and there is estimated to be 200 billion galaxies and ought to be 6 trillion galaxies in the observable universe. And a breathtaking 200 billion trillion stars in the known or observable universe. The observable universe is the part of the universe we can see. Since the universe is always expanding faster than light we will never be able to see how big the universe is. The observable universe is only 94 billion light years across. Emphasis on the word only. which also means that if u were to travel at the speed of light it would still take you 94 billion years to travel through the observable universe