Credit: NASA/JPL-Caltech/2MASS
Space spider
A glowing green spider seems to stretch its legs in a NASA image from the constellation Auriga. The image shows the Spider Nebula, a cloud of dust and gases 10,000 light-years from Earth. It was captured by NASA's Spitzer Space Telescope and the Two Micron All-Sky Survey, or 2MASS. For the record, the nebula isn't really green – infrared colors, invisible to the naked eye, are shown in blue, green and red so that the nebula is visible.
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