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Transcript of Astronomy
Earth is the only planet known for having an atmosphere that contains free oxygen. Earth is the fifth largest planet but smaller than the four gas giants Jupiter, Saturn, Uranus, Neptune. Earth is round because gravity pulls matter into a ball, but earth is not quite round it is more likely oblate spheroid.
*Planets not scaled to size*
Romans gave this planet the name Venus. Venus is the Roman name for the Greek Goddess Aphrodite. Venus is the hottest planet because of the green house effect, temperatures there can even get to 870 degrees Fahrenheit.
The greenhouse effect is caused by the massive amounts of C02 in Venus's atmosphere. 95.5% of Venus's atmosphere is C02. It is the second planet in the solar system closest to the sun. Venus is a relativity large planet (for the first four planets). If you compare Venus to Earth they are very similar in size, but Earth is a little bigger.No humans are able to go to Venus, you would melt due to the temperature. This has actually happened before. It has happened to space probes that both America and Russia have sent to Venus
Mercury is the closest to the Sun. Mercury is the Roman version of the Greek God Hermes. Mercury is also the smallest planet in the solar system. Mercury also is lacking an atmosphere. Which is why it's not the hottest planet but we'll talk about -that later (hint hint it's Venus). Mercury also has the fastest orbit time because it's the closest so there is less space to cover. Back to the temperature Space.com said " that the temperature can reach 840 degrees Fahrenheit, but can drop to -275 degrees Fahrenheit". So thank you Space.com.
Mars is named after the Roman version of the Greek God Ares. Many scientists believe that Mars may one day be able to hold life. It's also is supposed to have martians but of course none of our rovers have ever actually caught one of these so called "martians" so you can make up your mind on that one. I mean whats the worse thing that can happen an all out war that we wouldn't be prepared for not that that's ever happened before cough cough WWI.
Jupiter is the largest planet in the milky way, I mean who knows whats really out there ha ha aliens. Jupiter also contains the Great Red Spot. You see the Great Red Spot is very interesting because it is a storm that has been going on for a really long time. The Great Red Spot actually is bigger than Earth. Jupiter is the Roman Version for the Greek God Zeus. Jupiter is actually over double the size of all of the other planets (in our galaxy) put together. Jupiter also has sixty seven moons some of which are capable of holding life. You would die of old age before getting the so unless there is a large advancement in our technology.
Uranus was basically the first King God of the titans basically what Zeus (Jupiter) is to all the Gods. It also is on it's side. Uranus is also the coldest planet in our galaxy. Uranus was first called Georgium Sidus but it was later changed to fit in with the other planets and being named for Roman Mythology Gods and Titans.
Saturn is the Roman version of the Greek Titan Chronus. You see Chronus is the father of Poseidon, Zeus, and Hades, and an all around bad guy. Back to the aliens Spacefacts.com said that one of Saturn's moons named Titan (coincidental). Back to the point they said that " Titan to be a possible harbor for life, but not Earth-like life" what do they mean when they said "life but not Earth-life" do you mean aliens. Saturn was discovered by Galileo Galilei. Saturn also has the most rings with over thirty rings.
Neptune is named after the Roman version of the Greek God Poseidon. One it's moons are named Triton (you really can't write these things). Neptune is the farthest planet from the Sun so whenever it's orbiting the Sun the more space it has to cover. Just one orbit around the Sun takes 165 Earth years. One orbit around the Sun is 60225 Earth days. (Neptune's gravity is dragging Triton closer to the planet, meaning that millions of years from now, Triton will come close enough for gravitational forces to rip it apart) poor Triton. Neptune is a giant planet of gas so Neptune is a gas giant. Most of the gas that makes up Neptune is hydrogen. Neptune also has a Great Dark Spot which is a storm with winds that can go up to 1500 mph.