[3] The apparent shape of the very faint outer belt, if confirmed, would give astronomers a way to estimate the inclination of the Proxima Centauri planetary system. (sciencedaily.com)
The team has also considered a different scenario where a hypothetical second dwarf planet suffered a catastrophic collision with Fomalhaut b. Kalas explained, «The collision scenario would provide a solution as to why Fomalhaut (the star) has a narrow outer belt linked to an extreme planet. (hubblesite.org)
If confirmed, the nature of an outer belt is intriguing, given its very cold environment far from a star that is cooler and fainter than the Sun. (sciencedaily.com)