THE blue color of the sky on a clear day is familiar to all. And yet how many have considered the source of this delicate mantle of azure which Nature spreads over the dome of the heavens?

When the Sun is near the horizon, its light passes through a lot more of the atmosphere to reach the Earth's surface than ...

All-color sky maps Initially signed with Ball Aerospace, which has since been acquired by BAE Systems, the SPHEREx mission will be used to identify targets of interest for follow-up studies in greater ...

"File that theory under the 'red sky in morning sailors take warning ... They are often white but can be quite colorful. Their colors usually go from red on the inside toward the sun, out to ...

How much color should I be able to see in sky objects through a 10-inch telescope? Dennis Holt Concordia, Kansas Unfortunately, when you look at distant galaxies and nebulae, you won't see much ...