Data

Copy and paste the text below. It is read-only. Select All

age of sun 5 billion years old age of universe 14.7 billion years old big bang theory theroy that all the matter in the universe was in a tiny speck that rapidly expanded distance from sun to earth 93 million miles or 150 million kilometers geocentric the theory that the planets and sun orbit around the earth heliocentric the theory that the planets orbit the sun length of the solar cycle 10-11 years magnetic field the magnetic force field that surrounds planet earth milky way galaxy spiral galaxy where our solar systemis located nebula a cloud of gas and dust where stars are born northern lights lights in the sky caused by solar particles reacting with earths magnetic field nuclear fusion the process of light elements crashing together to form heavy elements number of galaxies in universe 100 billion number of stars in the milky way galaxy 200 billion size relationship earth to sun 1 million earths in the sun size relationship moon to earth 4 moons in the earth solar winds electrically charged particles that blow off the surface of the sun sun the medium sized star at the center of our solar system sunspots darker cooler areas on the surface of the sun time till the sun dies 3 billion years where nuclear fusion happens in stars