Science Bulletins: Elusive Y-Dwarfs Discovered

4,208 views · Published 11 May 2012 · 1:35 · Indexed 9 October 2026

Channel: American Museum of Natural History · 2012 · Science & Technology

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Brown dwarfs are cosmic objects that are intermediate between stars and planets. Scientists have spent more than a decade seeking confirmation of the coolest, faintest type of brown dwarfs—Y-dwarfs—which had been predicted but never seen. Recently, the powerful infrared vision of NASA's Wide-Field Infrared Survey Explorer, or WISE, has captured these phantoms during its sweeping survey of the night sky.

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