The Best Ever Maps Of Our Two Nearest Galaxies
Say hello to the Large and Small Magellanic Clouds, like you've never seen them before. Thanks to NASA's Swift satellite and astronomers from both NASA and Penn State University, we can now feast our eyes on this: the most detailed ultraviolet light survey ever of the two closest galaxies to us. Ultraviolet surveys like this can be the best way to get a look at nearby galaxies; our own sun doesn't give off all that much UV, so it appears more dim and doesn't overpower the hotter stars in the Large and Small Magellanic Clouds, the two galaxies closest to our own Milky Way. With non-UV photography, our sun would drown out more faraway bodies. This particular shot, presented yesterday at a meeting of the American Astronomical Society, is a mosaic of 2,200 shots, combining to create a 160-megapixel image. It's sharp enough that it's given a rating of 2.5 arc...