The cloud contains enough dusty material to completely block the visible light from background stars. (sciencedaily.com)
Kalas and a multi-institutional team using GPI first targeted the star in search of other planets in May 2015 and discovered that it was surrounded by a ring of dusty material very close to the size of our own solar system's Kuiper Belt. (planetimager.org)
When comets approach the Sun, these ices heat up, eventually turning to gases that jet out into space together with dusty material to form a head or coma around the cometary nucleus. (sciencedaily.com)