A team from the Instituto de Astrofísica de Canarias (IAC) has quantified for the first time the impact that the motions of binary stars can have on estimates of dark matter in some of the smallest galaxies in the universe. The study proposes a new methodology that will make it possible to obtain more precise measurements of the amount of dark matter present in these systems. The Milky Way, our galaxy, contains hundreds of billions of stars. However, dozens of much smaller galaxies orbit around it, dwarf companions that host thousands of times fewer stars and live embedded within our galaxy

UNDARK continues its programme of scientific activities with a new workshop bringing together researchers to discuss some of the key questions at the frontiers of cosmology, astrophysics, and particle physics. The meeting provides a space for scientific exchange and discussion around the fundamental challenges involved in understanding the dark Universe, from the nature of dark matter and dark energy to their implications for our current picture of the cosmos. The opening day featured contributions from Alicia and Daniela, whose presentations introduced different perspectives and research