The phrase "dusty cloud" refers to a group of particles or small pieces of dirt and debris that float in the air, creating a cloudy appearance. Full definition
But even for stars with ages of several hundred million years, Spitzer found a startling number of bright dusty clouds. (sciencemag.org)
It is orbited by a small group of bright stars and, in addition, an enigmatic dusty cloud, known as G2, has been tracked on its fall towards the black hole over the last few years. (sciencedaily.com)
«Best view yet of dusty cloud passing galactic center black hole.» (sciencedaily.com)