Claire Capanna

TL;DR: Images from the OSIRIS scientific imaging system onboard Rosetta show that the nucleus of 67P/Churyumov-Gerasimenko consists of two lobes connected by a short neck, which raises the question of whether the two Lobes represent a contact binary formed 4.5 billion years ago, or a single body where a gap has evolved via mass loss.

TL;DR: In this article, a high-resolution shape model of the nucleus of the comet 67P/Churyumov-Gerasimenko was used to estimate the porosity of the surface of the cometary nucleus.

TL;DR: It is reported that pits on comet 67P/Churyumov–Gerasimenko are active, and probably created by a sinkhole process, possibly accompanied by outbursts, and argued that after formation, pits expand slowly in diameter, owing to sublimation-driven retreat of the walls.

TL;DR: The notable structural similarities between the two lobes of comet 67P/Churyumov–Gerasimenko indicate that the early-forming cometesimals experienced similar primordial stratified accretion, even though they formed independently.

TL;DR: In this paper, the tensile, shear, and compressive strengths of the cometary material were estimated using different surface morphologies (overhangs, collapsed structures, boulders, cliffs, and Philae's footprint) and mechani- cal considerations.