An aurora is a natural light display in the sky, usually seen in the polar regions, caused by the collision of charged particles from the sun with atoms in the Earth's atmosphere. HAZE is a type of air pollution that is caused by dust, smoke, and other pollutants in the air, which reduces visibility and makes the air hazy. A METEOR is a small piece of rock or dust that enters the Earth's atmosphere and burns up, creating a bright streak of light in the sky. All three of these atmospheric phenomena are beautiful to witness and can be awe-inspiring.