Oort Cloud, Solar System and Mini Galaxy

The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it ...
The inner Oort cloud, between 1,000 and 10,000 AU from the sun, displays a spiral formation with arms that extend 15,000 AU.
Researchers claim that there could be at least 1 million interstellar objects hiding in the Oort Cloud at the edge of our ...
Sure, they’re particles and rocks, but they’re still a fascinatingly long way from home. Alpha Centauri is the star system ...
Over a million interstellar objects larger than 100 meters could be in the outer solar system, originating from Alpha ...