James Webb Space Telescope sees ‘ghostly’ interstellar light

Image of the intracluster light of the cluster SMACS-J0723.3-7327 obtained with the NIRCAM camera on board of JWST. The data have been processed by the IAC team to improve the detection of the faint light between the galaxies (black and white).
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The first deep-field image of space taken by the James Webb Space Telescope (JWST) allowed scientists to study the faint, almost ghostly light from orphan stars that exist between galaxies in galactic clusters.

These stars, not gravitationally bound to galaxies, are pulled from their homes by the massive tidal forces between galaxies and drifted into intergalactic space. The light emitted by these star orphans is called intracluster light, and it is so faint that it has only one percent of the brightness of the darkest visible sky. PlaceπŸ‡§πŸ‡·

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