unique changes spotted on Rosetta’s comet / Rosetta / Space Science / Our Activities / ESA

Before and after: unique changes spotted on Rosetta’s comet / Rosetta / Space Science / Our Activities / ESA
▻http://www.esa.int/Our_Activities/Space_Science/Rosetta/Before_and_after_unique_changes_spotted_on_Rosetta_s_comet

http://www.esa.int/var/esa/storage/images/esa_multimedia/images/2017/03/comet_changes/16866512-1-eng-GB/Comet_changes_large.jpg

Growing fractures, collapsing cliffs, rolling boulders and moving material burying some features on the comet’s surface while exhuming others are among the remarkable changes documented during Rosetta’s mission.

A study published in Science today summarises the types of surface changes observed during Rosetta’s two years at Comet 67P/Churyumov-Gerasimenko. Notable differences are seen before and after the comet’s most active period – perihelion – as it reached its closest point to the Sun along its orbit.

http://www.esa.int/var/esa/storage/images/esa_multimedia/images/2017/03/comet_changes_ripples_and_scarps_in_hapi/16866772-1-eng-GB/Comet_changes_ripples_and_scarps_in_Hapi.jpg