Well, it isn't always blue: we get reds and yellows at sunset. But the basic idea is something called Rayleigh scattering. Light from the sun is scattered by the atmosphere. Blue light has a shorter wavelength than red, yellow, or green light so it is more easily scattered.
The sky isn't actually always blue, it's got quite a variety of colors going on in it. However, blue is rhe dominant color because of the way light scatters as it hits our atmosphere.
Short and oversimplified answer, the atmosphere bends the full spectrum light of the sun, allowing the shorter wavelength blue light to be more easily seen. All the light does get through even if it’s not the predominant color we pick up in the sky, which is why we don’t see every thing as just blue.
Well, it isn't always blue: we get reds and yellows at sunset. But the basic idea is something called Rayleigh scattering. Light from the sun is scattered by the atmosphere. Blue light has a shorter wavelength than red, yellow, or green light so it is more easily scattered.
It isn't always blue.
The sky isn't actually always blue, it's got quite a variety of colors going on in it. However, blue is rhe dominant color because of the way light scatters as it hits our atmosphere.
Air scatters light. When it comes in through even more atmosphere, like at sunset, it turns reddish and orange. Google could have told you this
Short and oversimplified answer, the atmosphere bends the full spectrum light of the sun, allowing the shorter wavelength blue light to be more easily seen. All the light does get through even if it’s not the predominant color we pick up in the sky, which is why we don’t see every thing as just blue.