Astronomy

"Houston, the eagle has landed" said Neil Armstrong. "That's one small step for man, and one giant leap for mankind" Buzz Aldrin commented. Astronomy is the study of stars , planets, and pretty much everything in space. Nobody really knows if space ever ends but they do know that it's huge. There are 8 planets in our solar system all with different moons, looks, and names.

Sun: (The sun isn't a planet) The Sun is 92,960,000 miles away from the earth and all planets orbit around it. The Sun is 73.46% Hydrogen, 24.85% Helium, 0.77% Oxygen, 0.29% Carbon, 0.16% Iron, 0.12% Sulfur, 0.12% Neon, 0.09% Nitrogen, 0.07% Silicon and 0.05% Magnesium. The Sun is a Yellow Giant and it is so big about a million Earth's could fit inside it.

Mercury: Mercury is the smallest planet in the Solar System and is also the closest to the sun. It takes only 88 days for it to orbit the Sun and a day on Mercury is only 5 hours long! mercury is so small it could fit inside the Earth 3 times. Mercury was named after the Greek god of Sale Mercury.

Venus: Venus is a Volcanic planet and is mostly made of Carbon Dioxide and Nitrogen. It is almost the same size of the Earth and is commonly called Earth's twin. It is the Second closest planet to the sun (you'd think it was the first because it's so dang hot) and is named after the Roman Goddess of Love.

Earth: Earth is home to millions of species of life including humans and was formed 4.54 billion years ago. The Earth is made of Nitrogen and Oxygen and has 6,740,000,000 humans on it, most of which live in Asia. It takes 365 days (366 on leap year) to orbit the Sun and 24 hours for it to spin on it's axis once. The Earth's water covers three fourths of the Earths surface and has only one moon called the Moon.

Mars: Mars is the fourth closest planet to the sun and is named after the Roman God of war, Mars. It is commonly called the red planet because of the iron in it's soil. Mars has polar ice caps just like Earth but instead of frozen water the ice is made of Nitrogen! Mars has the biggest geyser in the galaxy called Olympus Mons which is 7 times bigger then Mt. Everest and shoots Carbon Dioxide.

Jupiter: Jupiter is the largest planet in the Solar System and is 5th closest to the sun. Jupiter is two and a-half times bigger than all the planets in the Solar System combined! Jupiter has 63 moons too! It is named after the Roman God Jupiter and the strangest thing about it is a 600 year old storm that could cover the Earth 3 times.

Saturn: Saturn is the sixth planet closest to the Sun and has a huge ring around it made up of asteroids and comets. Saturn has the second largest moon in the galaxy named Titus it is 2x larger than Mercury. Saturn is named after the Roman God Saturitus.

Uranus: Uranus is the sixth planet from the sun and is made of Hydrogen and Helium. Uranus is named after a Roman God just like most of the planets are. The guy who dicovered Uanus was called William Shercael. Uranus is a pecuiliar planet mainly because of it's color, Light Blue which is caused by all the Helium.

Neptune: Neptune is the last of the gas giants and the planet farthest away from the sun. Neptune is named after the Roman God of the sea. Neptune is entirely made of ocean that are made of Hydrosulfide. It is 15x bigger than earth and has 6 moons.

BLACK HOLES THE DESTROYERS OF GALAXY'S!!!!!!!!!!!!!!

A Black Hole is a collapsed star destoyed by it's own gravity. This is a picture of a Black hole sucking up a star. I just hope a Black Hole doesn't hit Earth or else there will be 7 planets instead of 8. Iknow what your'e thinking, what happend to Pluto, well it got kicked off as a planet by the goverment they say it's to small to be a planet.