1 00:00:00,000 --> 00:00:08,280 Hi, I'm Alexandra Samsel with more science news you can use. 2 00:00:08,280 --> 00:00:09,840 Why is the sky blue? 3 00:00:09,840 --> 00:00:13,680 Hey, sometimes the sky is red or orange or some other color. 4 00:00:13,680 --> 00:00:14,680 Why is that? 5 00:00:14,680 --> 00:00:15,680 I'll get to that. 6 00:00:15,680 --> 00:00:18,720 First, let's figure out why the sky is blue. 7 00:00:18,720 --> 00:00:22,920 The sun produces light containing all the colors of the rainbow, but all those colors 8 00:00:22,920 --> 00:00:27,320 combined produce white light, like the colors of the spinning circle. 9 00:00:27,320 --> 00:00:31,880 All the colors are still there, but mixed together, they appear white. 10 00:00:31,880 --> 00:00:35,680 So why is the sky blue or orange or whatever? 11 00:00:35,680 --> 00:00:39,760 Blue light waves are absorbed by the gases in the air and get scattered all over the 12 00:00:39,760 --> 00:00:40,760 sky. 13 00:00:40,760 --> 00:00:46,040 But at the sunset, most of the blue light has been scattered by the time the light reaches 14 00:00:46,040 --> 00:00:47,040 you. 15 00:00:47,040 --> 00:00:49,640 What you see are the colors of the sunset. 16 00:00:49,640 --> 00:00:53,960 Until next time, I'm Alexandra Samsel with more science news you can use.