An artist’s rendering of Barnard’s Star, as seen from one of the newly discovered exoplanets orbiting it International Gemini Observatory / NOIRLab / NSF / AURA / P. Marenfeld under CC BY 4.0 For ...

While our Sun prefers to go solo, many other stars are parts of binary systems, with a pair of stars gravitationally bound to each other. In some cases, the stars are far enough apart that planets can ...