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A dark age is a period of severe decline within a civilization. Dark ages are usually caused by famine, pestilence, war, or some combination of problems.

A dark age can also be a period where the sources are sparse and little is known.

See also: Dark Ages

In cosmology, the Dark Age is the period between recombination (when the universe became transparent to radiation) and reionization (when the first stars formed). During this time, the universe was filled with a cooling neutral gas and photons.

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Topics: Dark Age, Dark Star, Dark Matter, Darkthrone, Dark Side Of The...

Dark StarDark Star is a 1973 motion picture directed by John Carpenter and co-written with Dan O'Bannon. Although destined for eventual release in 1974, this was only possible as a consequence of a successful series of showings at a number of film festivals in 197	Dark matterDark matter is matter that can't be detected by its emitted radiation but whose presence can be inferred from gravitational effects on visible matter such as stars and galaxies. Estimates of the amount of matter in the universe based on gravitational effe	DarkthroneDarkthrone is a highly influential Norwegian black metal band. Statistics Genre Black metal, death metal Country Norway Status Active Time 1986- Biography Darkthrone began its existence as a technical, jazz-influenced death metal outfit under the name Bla
Dark Side of the MoonThis article is about the album by musical group Pink Floyd. For information on the actual moon orbiting Earth, see Moon. The Dark Side of the Moon (DSotM; the initial "The" is included in some versions of the title) is a 1973 concept album by Pink Floyd,	Dark Angel (TV series)Dark Angel is a science fiction television series, which was first aired in October 2000 and ran for two seasons. It was created by executive producers Charles H. Eglee and James Cameron, the director of Titanic (1997). Setting In the year 2009, a genetic	Dark moonThe dark moon is the time when the Moon is so close to the Sun in the sky that it cannot be seen even near sunset or sunrise. Depending on how close the Moon passes to the line between Earth and Sun, this may be anywhere from 1. 5 days long. The astronomi
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