nEbula |
Hourglass NebulaThe sands of time are running out for the central star of this hourglass-shaped planetary nebula. With its nuclear fuel exhausted, this brief, spectacular, closing phase of a Sun-lik... Posted by on Sat, 11 Aug 2007 00:48:00 GMT |
Aurora australis |
Aurora australis From space, the aurora is a crown of light that circles each of Earth's poles.The IMAGE satellite captured this view of the aurora australis (southern lights) on September 11, 2005... Posted by on Sun, 29 Jul 2007 22:01:00 GMT |
Snow Crystals |
Stellar PlatesThese common snowflakes are thin, plate-like crystals with six broad arms that form a star-like shape.Their faces are often decorated with amazingly elaborate and symmetrical markings.P... Posted by on Wed, 07 Feb 2007 18:47:00 GMT |