Sky - online puzzles

Sky

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.

black and red porsche 911 parked near white building sliding puzzle onlineLake landscape online puzzleIguazu Falls sliding puzzle onlinesnow covered mountain during sunset sliding puzzle onlineAirplane over the island sliding puzzle onlinelake in the middle of mountains online puzzlesports signage online puzzlebrown house on mountain sliding puzzle onlineEconomic picture on trees online puzzlegreen and white bus on road near high rise buildings online puzzleF13 HOH Challenge sliding puzzle onlineSpace with X-ORG sliding puzzle onlinegreen grass field near mountain during daytime sliding puzzle onlinefish eye aerial view of building online puzzleBeach and nature in Greece sliding puzzle onlinetesting: D online puzzlebody of water sliding puzzle onlinebrown rock formation during daytime online puzzlewhite and black house near green trees and river sliding puzzle onlineCopenhagen buildings sliding puzzle onlinegreen-leafed tree sliding puzzle onlineZakynthos Island sliding puzzle onlineIMMUNITY CHALLENGE online puzzleAmethyst online puzzlewaterfalls near green trees under white sky during daytime sliding puzzle onlinewhite and blue concrete fountain in front online puzzleVenice on the water online puzzlered flower field during sunset online puzzleGarden of the Gods sliding puzzle onlineThe Rocks of Belogradchik online puzzleDon Quixote's windmills sliding puzzle onlinevenom654 sliding puzzle onlinetime lapse photography of fireworks online puzzleFortnite sliding puzzle onlineF17 Challenge sliding puzzle onlinePuzzle - AISA online puzzlebrown and green concrete building with lights turned online puzzleyellow flower field under cloudy sky during daytime sliding puzzle onlinebrown rock formation under white clouds during daytime online puzzlesnow covered mountain under cloudy sky during daytime online puzzleBoat on the river sliding puzzle onlinelavender field sliding puzzle onlineThe Game: Gods at War sliding puzzle onlineS2 Octagon Slide online puzzleman looking on mountain sitting on rock sliding puzzle onlinenature with the colors of the rainbow online puzzlelandscape - the world is beautiful online puzzlegreen pine trees near snow covered mountain during daytime online puzzle
Copyright 2024 slidingtiles.com All rights reserved.