Event Details
More than two dozen galaxies have been discovered in orbit around our own Milky Way galaxy over the past decade. These "ultra-faint" galaxies are less luminous than any other known galaxy, and are several million times fainter than the Milky Way itself. The Milky Way's ultra-faint galaxies have emerged as the most dark matter-dominated galaxies in the known Universe. On October 12, Marla Geha, Professor of Astronomy and of Physics at Yale University, will discuss the most recently discovered ultra-faint galaxies and share first images of these systems from the James Webb Space Telescope.