An article published in the magazine “Astrophysical Journal Letters” describes the discovery of a cold dust ring around Proxima Centauri, the star closest to the solar system. A team of researchers led by Guillem Anglada from the Instituto de Astrofísica de Andalucía (CSIC), Granada, Spain, used the ALMA radio telescope to locate that ring that extends for a distance between one and four times that of the Earth from the Sun. There might also be a second ring, much farther from its star, a situation that makes the researchers think of a complex solar system.