![]() ![]() Researchers will continue to use Webb to take longer exposures, revealing more of our vast universe. This deep field, taken by Webb’s Near-Infrared Camera (NIRCam), is a composite made from images at different wavelengths, totaling 12.5 hours – achieving depths at infrared wavelengths beyond the Hubble Space Telescope’s deepest fields, which took weeks. The combined mass of this galaxy cluster acts as a gravitational lens, magnifying more distant galaxies, including some seen when the universe was less than a billion years old. Webb’s image is approximately the size of a grain of sand held at arm’s length, a tiny sliver of the vast universe. Affectionately known as Webb’s First Deep Field, this is galaxy cluster SMACS 0723 and it is teeming with thousands of galaxies – including the smallest, faintest objects ever observed. NASA’s James Webb Space Telescope has delivered the deepest and sharpest infrared image of the distant universe so far. ![]()
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