Universet, Jorden og vores galakse

Also called The Blue Planet and the Worldabout 3.5 billion years ago, earth was created.About 20-100 million years later, another planet hit earth and became the moon.About 1 million years later, life began, as bacteria’s and evolved more and more.About 12.000 years ago Humans began to be a culture, and dominating other animals, so we were basically the leader of all animals.Today, there is 10-14 million species of life including 7.2 billion humans.There is 40.057 kilometers around earth, and has a diameter of 12.742 kilometersThere is 152,1 million kilometers to the sun and it takes earth 365.26 days to orbit the sun at the speed of 30 kilometers per second or 107.000 kilometers per hour.

The solar-System

The solar-system is 4,568 billion years old, it has 8 planets, Mercury (closest to the sun), Venus, Earth, Mars, Jupitar (biggest Planet), Saturn, Uranus and Neptune (furthest from the sun).The solar-system is about 9 billion kilometers in diameter.

The Milky Way

The Milky Way, which is our galaxy, is gigantic, well it isn’t the biggest galaxy that we have found out there, but it’s really big. Our galaxy about 100.000-180.000 light-years in diameter which is about 925 quadrillion kilometers (925.000.000.000.000.000 km).Our galaxy contains about 100-400 billion stars and might even more.Our sun is placed within the disc, which are about 27,000 light-years (255.439.730.982.228.130 km) from the galactic center and takes about 240 million years to come around the whole galaxy.