As you read this, the moon is circling the earth at 2,300 miles per hour. Even at that speed, it will take it nearly a month to make a full rotation. Meanwhile, despite circling the sun at 66,000 miles per hour, the earth will take a whole year to make one orbit. And our sun is just one of 200 million other suns spinning around the Milky Way at 483,000 miles per hour—a speed which necessitates 225 million years to circle around once. And the Milky Way is but one of 100 billion other galaxies shooting through space at over 1 million miles an hour. The universe is immense!