Whoa — An image from NASA’s Spitzer Space Telescope offers a unique take on of the North America Nebula, a vast region of interstellar gas and dust thus named because, when seen through an ordinary telescope, its shape resembles the North American continent. In this infrared view from Spitzer, however, the dark clouds of dust and gas that carve out the continental shape are made transparent — providing a view of, in a very real sense, previously hidden worlds.
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