I found this fascinating: >It is estimated that approximately one third of the star systems in the Milky Way are binary or multiple, with the remaining two thi

I found this fascinating: >It is estimated that approximately one third of the star systems in the Milky Way are binary or multiple, with the remaining two thirds being single stars.[62] The overall multiplicity frequency of ordinary stars is a monotonically increasing function of stellar mass. That is, the likelihood of being in a binary or a multi-star system steadily increases as the masses of the components increase.[61] (later) >While a number of binary star systems have been found to harbor extrasolar planets, such systems are comparatively rare compared to single star systems. Observations by the Kepler space telescope have shown that most single stars of the same type as the Sun have plenty of planets, but only one-third of binary stars do. According to theoretical simulations,[66] even widely separated binary stars often disrupt the discs of rocky grains from which protoplanets form. https://en.wikipedia.org/wiki/Binary_star https://en.wikipedia.org/wiki/Binary_star