Sky - online puzzles


The sky is an unobstructed view upward from the surface of the Earth. It includes the atmosphere and outer space. It may also be considered a place between the ground and outer space, thus distinct from outer space.

In the field of astronomy, the sky is also called the celestial sphere. This is an abstract sphere, concentric to the Earth, on which the Sun, Moon, planets, and stars appear to be drifting. The celestial sphere is conventionally divided into designated areas called constellations.

Usually, the term sky informally refers to a perspective from the Earth's surface; however, the meaning and usage can vary. An observer on the surface of the Earth can see a small part of the sky, which resembles a dome (sometimes called the sky bowl) appearing flatter during the day than at night. In some cases, such as in discussing the weather, the sky refers to only the lower, denser layers of the atmosphere.

The daytime sky appears blue because air molecules scatter shorter wavelengths of sunlight more than longer ones (redder light). The night sky appears to be a mostly dark surface or region spangled with stars. The Sun and sometimes the Moon are visible in the daytime sky unless obscured by clouds. At night, the Moon, planets, and stars are similarly visible in the sky.

Some of the natural phenomena seen in the sky are clouds, rainbows, and aurorae. Lightning and precipitation are also visible in the sky. Certain birds and insects, as well as human inventions like aircraft and kites, can fly in the sky. Due to human activities, smog during the day and light pollution during the night are often seen above large cities.

Manifest HQ Beach online puzzleeiffel tower online puzzlewhite concrete building near green trees and mountain sliding puzzle onlineAdventure Time online puzzleTahiti4A sliding puzzle onlineFebr 7th sliding puzzle onlinewhite and gray concrete house beside river during daytime sliding puzzle onlineBridge over the abyss sliding puzzle onlinetime-lapse photography of river sliding puzzle onlinebody of water and mountain online puzzlePikachu pokemon online puzzleSpiral of colors sliding puzzle onlineApril 6 2022 sliding puzzle onlineDang! big bird stupid feet sliding puzzle onlineDoor 5 sliding puzzle onlineWoody toy story online puzzlegreen trees under gray clouds online puzzlehouse and trees sliding puzzle onlineScenic. survivor Maldives sliding puzzle onlineBanff National Park , CA sliding puzzle onlinePila'a Beach, Kauai sliding puzzle onlineberry ................. online puzzleEaster eggs in the grass sliding puzzle onlineCastle dungeon door sliding puzzle onlineBen's Survivor Slide Puzzle online puzzlepeople in water falls during daytime online puzzleseason 8 slide puzzle online puzzlearchitectural photography of green mountain sliding puzzle onlineCamp Dock online puzzlebridge in green online puzzleAir Mercy sliding puzzle onlinetraditional Korean houses of Bukchon Hanok Village online puzzle4x10KMRelay sliding puzzle onlinegreen mountains under blue sky during daytime online puzzleWild West sliding puzzle onlinedramatic sunset in Varkala, Kerala, India sliding puzzle onlineBhangarh Fort, India online puzzleaerial photography of flowers at daytime online puzzleSeptember 12 sliding puzzle onlineStation E online puzzlePuzzle Proof sliding puzzle onlinebagan, myanmar online puzzleaerial view of green grass field near body of water sliding puzzle onlineKrakow, Poland sliding puzzle onlineColchuck Lake online puzzlegreen and brown trees near mountain during daytime sliding puzzle onlineMountains in Taiwan online puzzlelandscape photography of green mountain sliding puzzle online