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Free Wallpapers Sky, Galaxies & Space Page 3
All free wallpaper images of space, galaxies, the solar system, stars, planets including Hubble Telescope and NASA pictures. See both Space Wallpaper categories below for all image downloads.
Home > Free Wallpapers > Sky, Galaxies & Space Wallpapers
Free Wallpaper Images - The Sky, Galaxies and Space
Sky, Galaxies & Space Wallpaper Downloads - Viewing Page 3
Huge selection of high resolution desktop wallpapers from NASA, the Hubble Telescope and other invaluable sources. Our night sky, the nine planets in our solar system, the earth, sun, mars, jupiter, venus, uranus, pluto, saturn, mercury, stars, star births, star formaions, distant galaxies, nebula (nebulae) and many more stunningly beautiful pictures of our solar system and beyond. Find high quality wallpaper pictures for your computer desktop and download free.
How to Download Your Free Computer Wallpapers
Right-click on a wallpaper preview pane and choose 'Save Picture As' or 'Save Image As' to save it on your computer in full size. To preview any wallpaper image at full size, click on a wallpaper preview picture or the link describing the wallpaper. All wallpaper images are minimum 1024 x 768 for great viewing on any desktop.
Index of Free Space Wallpaper Downloads
Sky, Outer Space, Galaxies, Solar System, Space, Planets and Stars
Sky, Galaxies & Space Planets, Stars & Solar System
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Sky, Galaxies & Space|
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Amazing Space Glossary of Astronomy Terms - Part 3 of 4 (NASA)|
Galaxy: A collection of a million to a trillion stars, along with gas and dust, all held together by gravity.
Halo: A roughly spherical collection of old stars, clusters of old stars (called globular clusters), and a little bit of gas and dust that extends farther than all other components of a galaxy. Halos contain dark matter, which is material that we cannot see but whose gravitational force can be measured. In the Milky Way, the halo measures about 1 0,000 light-years across.
Hubble Deep Field: A long-exposure, optical- wavelength image. At the time it was taken, it showed the sharpest views of the faintest galaxies ever seen. The image was made by aiming the Hubble Space Telescope at a single piece of sky for 150 consecutive orbits. The telescope made exposures; 76 of them were fully processed and used for the image. There are two Hubble Deep Field images — the first one studied a location in the northern sky (HDF–N) and the second one studied a location in the southern sky (HDF–S).
Hubble Space Telescope: An automated telescope that orbits Earth at an altitude of 600 km ( 75 miles). The National Aeronautics and Space Administration and the European Space Agency built the telescope. Its primary mirror is . meters (9 .5 inches) in diameter. The telescope contains an array of instruments capable of carrying out a variety of high-quality astronomical observations at ultraviolet, optical, and infrared wavelengths. Because the telescope is above Earth’s atmosphere, it can obtain extremely clear images.
Irregular Galaxy: A galaxy whose shape is neither elliptical nor spiral. It is often rich in interstellar matter (gas and dust).
Light-year: The distance traveled by light in a full year, equal to some 10 trillion kilometers (or about 6 trillion miles).
Milky Way: The specific galaxy to which the Sun belongs, so named because many of its stars appear as a milky band of light extending across the sky overhead, on a clear, dark night. The Milky Way is a spiral galaxy.
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