The geology and geophysics of Kuiper Belt object (486958) Arrokoth | Hacker News

Hacker News new | past | comments | ask | show | jobs | submit

login

		The geology and geophysics of Kuiper Belt object (486958) Arrokoth (science.sciencemag.org)
		41 points by robin_reala on Feb 15, 2020 \| hide \| past \| favorite \| 2 comments

acvny on Feb 15, 2020 [–]

Impressive. How much data can be deducted from some pictures. What is it made of though?

Sharlin on Feb 15, 2020 | [–]

Porous rock and ice, with mean density less than that of water ice. The exact density is apparently unknown because of the objects’s asymmetric shape and a lack of natural satellites.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact