What makes the sky blue?
Well, to get technical, the sky isn’t blue, it’s black. Then, just to cover this common myth and falsity, the color we see has nothing to do with any reflection of the ocean. There is no reflection. The atmosphere just gets in the way of the sunlight, in a manner that when we look up we see blue. Our atmosphere is primarily nitrogen-oxygen. The Sun puts out everything from high-energy gamma-rays to low-energy radio waves. They take about 8 minutes for those photons (packets of light) to reach us. When they do, the high-energy gamma-rays pass the exosphere, get into the thermosphere, but are stopped quite quickly by the ionosphere, which is at the base of the magnetosphere (the field created by our magnetic field, which deflects X-rays and cosmic rays that would kill us). The ionosphere is an area where atoms have had electrons ripped from them (“ionized”), which makes them good at absorbing gamma-rays (which would also kill us, like the other high-energy rays). Incidentally, it’s also
