On day four of creation week about 6,000 years ago, God created the sun, moon, stars, planets, and meteoroids in outer space. These meteoroids bump into each other and break up into tiny particles that float into earth’s atmosphere and fall to the ground.

Scientists believe that about 40–60 tons of space dust land on earth each day. That’s the weight of about four school buses! The dust combines with tiny pieces of dirt, leaves, and dead skin cells on earth to form the specks that float through the air, coat our surfaces, and make us sneeze. That dust on your bookshelf? It likely includes a bit of outer space right in your home.