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Credit: NASA’s Goddard Space Flight Center

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Since scientists published a paper about the discovery in late May, the project has identified roughly 75 additional candidates.

It's been roughly two decades since researchers first discovered brown dwarfs, and the scientific community opened its eyes to this new class of objects between stars and planets. Although they are as common as stars and form in much the same way, brown dwarfs lack the mass necessary to sustain nuclear fusion reactions. They therefore do not have the energy to maintain their luminosity, so they slowly cool over the course of their lifetimes. Their low temperatures also render them intrinsically dim.", "items": [], "extra_data": {} }, { "id": 329928, "url": "https://svs.gsfc.nasa.gov/12660/#media_group_329928", "widget": "Single image", "title": "", "caption": "", "description": "Unlabeled version of above

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Credit: NASA/WISE

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Credit: NASA/WISE

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