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Galaxy Live Wallpaper


Galaxy Live Wallpaper

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UpdatedJanuary 1, 1970
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CategoryLive Wallpaper


A galaxy is a massive, gravitationally bound system consisting of stars, stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component called dark matter. The word galaxy is derived from the Greek galaxias (γαλαξίας), literally “milky”, a reference to the Milky Way. Examples of galaxies range from dwarfs with as few as ten million (107) stars to giants with a hundred trillion (1014) stars, each orbiting their galaxy’s own center of mass.

Galaxies contain varying numbers of star systems, star clusters and types of interstellar clouds. In between these objects is a sparse interstellar medium of gas, dust, and cosmic rays. Dark matter appears to account for around 90% of the mass of most galaxies[citation needed]. Observational data suggests that supermassive black holes may exist at the center of many, if not all, galaxies. They are thought to be the primary driver of active galactic nuclei found at the core of some galaxies. The Milky Way galaxy appears to harbor at least one such object.

Galaxies have been historically categorized according to their apparent shape; usually referred to as their visual morphology. A common form is the elliptical galaxy, which has an ellipse-shaped light profile. Spiral galaxies are disk-shaped with dusty, curving arms. Those with irregular or unusual shapes are known as irregular galaxies and typically originate from disruption by the gravitational pull of neighboring galaxies. Such interactions between nearby galaxies, which may ultimately result in a merging, sometimes induce significantly increased incidents of star formation leading to starburst galaxies. Smaller galaxies lacking a coherent structure are referred to as irregular galaxies.

On December 12, 2012, astronomers, working with the Hubble Space Telescope, reported that the most distant known galaxy, UDFj-39546284, is now estimated to be even further away than previously believed. The galaxy, which is estimated to have formed around “380 million years” after the Big Bang (about 13.75 billion years ago), and has a z (redshift) of is approximately 13.37 billion light years from Earth.

After impact of galaxies remained lonely planet’s shadow. Here it is: Shadow Galaxy.
Ice Galaxy,Inferno Galaxy,Vortex Galaxy,Andromeda Galaxy,Ursa Major Galaxy,Pinwheel Galaxy,Projectile Galaxy,NGC6946 Galaxy,さんかく座銀河,シルバラード銀河,ただしこの銀河,伴銀河と衝突した天の川銀河.
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