![]() The Crab Pulsar rotates about 30 times each second. In the nebula's very center lies a pulsar: a neutron star as massive as the Sun but with only the size of a small town. If youre using multiple displays, this changes the wallpaper. MAC OS X: Right-click on the image and click Use image as Desktop picture. WINDOWS: Right-click on the image and click Set as Background. The Crab Nebula spans about 10 light-years. Control-click (or right-click) the file, then choose Set Desktop Picture from the shortcut menu. Click the link that says 'Download this image as wallpaper'. ED 398 057 SE 058 402 Understanding Our Changing Planet : NASA's Mission to. Selecting a wallpaper Create a wallpaper slideshow Display picture of the day from Wikipedia to get surprise wallpapers Set live earth as desktop. The above image, taken by the Hubble Space Telescope, is presented in three colors chosen for scientific interest. This Sampler lists activities by indoor or outdoor settings, group size. The filaments are not only tremendously complex, but appear to have less mass than expelled in the original supernova and a higher speed than expected from a free explosion. Select the screen saver you would like to use. The drop-down menu will have all your available screen savers. The Crab Nebula, the result of a supernova seen in 1054 AD, is filled with mysterious filaments. Select the My Computer icon on your desktop. This is the mess that is left when a star explodes. Picture Credit: Stéphane Guisard (Los Cielos de Chile), TWAN Few specifics are known about the history or meaning of the unusual statues, but many believe that they were created about 500 years ago in the images of local leaders of a lost civilization. The Easter Island statues, stand, on the average, over twice as tall as a person and have over 200 times as much mass. What is sure is that over 800 large stone statues exist there. Why were the statues on Easter Island built? No one is sure. McCandless and fellow NASA astronaut, Robert Stewart, were the first to experience such an tethered space walk during a Space Shuttle mission in 1984. Guided by a Manned Maneuvering Unit MMU), astronaut McCandless, pictured above, was floating free in space. Send comments or suggestions to: about 100 meters from the cargo bay of the space shuttle Challenger, Bruce McCandless II was farther out than anyone had ever been before.
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