Comets launched into the inner Solar System by the passage of the Scholz binary star are hurtling around the Sun, threatening even Earth. The Scholz binary star was discovered in 2013 AD and is composed of a red dwarf and a brown dwarf, both very faint in luminosity and mass. The Scholz binary passed in 68,000 BC within just 52,000 AU (Astronomical Units = Earth-Sun distance) of the Sun (0.8 light-years). They therefore undoubtedly interacted with the outer layers of the Oort Cloud, a repository of dormant comets, launching a certain number (perhaps several million) on the long journey (a couple of million years!) into the inner Solar System, while others may have been captured and still others ejected into interstellar space or even ultimately into extragalactic space.
