A comet with ‘goose bumps’

A comet with ‘goose bumps’
Credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA.

A comet with ‘goose bumps’

A close-up im­age ac­quired by the OSIRIS (Op­ti­cal, Spec­tro­scop­ic, and In­frared Re­mote Imag­ing Sys­tem) cam­era re­veals struc­tures re­sem­bling ‘goose bumps’ on Comet 67P/Churyu­mov-Gerasi­menko. These pro­tu­ber­ances, ap­prox­i­mate­ly three me­tres in di­am­e­ter, are dot­ted across the steep slopes and cliffs. The pro­cess by which they de­vel­oped has yet to be in­ves­ti­gat­ed and ex­plained.

A close-up image acquired by the OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) camera reveals structures resembling ‘goose bumps’ on Comet 67P/Churyumov-Gerasimenko. These protuberances, approximately three metres in diameter, are dotted across the steep slopes and cliffs. The process by which they developed has yet to be investigated and explained.

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