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The universe is commonly defined as the totality of existence, including planets, stars, galaxies, the contents of intergalactic space, and all matter and energy. Definitions and usage vary and similar terms include the cosmos, the world and nature. Scientific observation of earlier stages in the development of the universe, which can be seen at great distances, suggests that the universe has been governed by the same physical laws and constants throughout most of its extent and history...

Dan LuVisi is a digital concept artist working in the film, video game and comic book industry. At the young age of 3, inspiration struck him in form of the Teenage Mutant Ninja Turtles and he hasn't stopped drawing since. His talent received recognition while he was still in high school and he was hired by German Acony Games during these years, prompting him to decide against college and instead, immediately follow his obvious calling...

The word fact can refer to verified information about past or present circumstances or events which are presented as objective reality. In science, it means a provable concept. Etymology and usage The word fact derives from the Latin Factum, and was first used in English with the same meaning: "a thing done or performed", a use that is now obsolete. The common usage of, "something that has really occurred or is the case", dates from the middle of the sixteenth century...

Underwater is a term describing the realm below the surface of water where the water exists in a natural feature (called a body of water) such as an ocean, sea, lake, pond, or river. Three quarters of the planet Earth is covered by water. A majority of the planet's solid surface is abyssal plain, at depths between 4,000 and 5,500 m (13,000 to 18,000 ft) below the surface of the oceans...