The Earth is the planet we're on at the minute, it has seen numerous wars, historical moments, marriages, love, and landmarks, it's seen mass extinction, genocide, it's name comes from the germanic word for 'ground', it's also the only planet not named after a greek or roman god, it has a diameter of 7,926 miles or 12,760 kilometers, wow! that's almost as big as my di- (IM SORRY), Earth's atmosphere is made up of 78% nitrogen, 21% oxygen, and 1% other gases such as argon, carbon dioxide, and neon!, fun fact! if the sun was the size of an average door, the earth would be the size of a nickle!!!