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Science And Nature

JWST has spotted sandy clouds on a distant alien world

Brown dwarfs are too massive to become a planet however, not large enough to become a star, providing them with top features of both. Now, astronomers utilizing the James Webb Space Telescope have discovered clouds using one of the cosmic objects

Space 2 September 2022

By Alex Wilkins

JSWT artist's impression

The James Webb Space Telescope can observe brown dwarfs in unprecedented detail

NASA-GSFC, Adriana M. Gutierrez (CI Lab)

The James Webb Space Telescope (JWST) has found direct proof clouds created from sand-like substances on a distant world.

Brown dwarfs are large balls of gas, more massive than planets but without enough mass and pressure from gravity to start out nuclear fusion like stars, providing them with a dull glow in mostly the infrared range. Up to now, all our observations of the failed stars have been in a narrow wavelength of light, limiting our knowledge of their chemical composition.

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