The night sky is not always black. Sometimes it glows red or green. This happens because of storms on the sun. The storms give off gases. When they hit Earth's air, they glow. Usually these lights can only be seen near the North Pole. But in October 2011, the lights were different. People all across the southern United States saw them. Do It! The in the southern sky were unusual. Press enter to interact with the item, and press tab button or down arrow until reaching the Submit button once the item is selected A stars B colors C planets D clouds