Count your halosOne of the strongest predictions of the standard cold dark matter paradigm is the hierarchy of structure down to Earth-mass scales. However, individual self-bound clumps of dark matter--"halos"--are difficult to detect directly. Instead, we use galaxies as lampposts for halos. By counting galaxies, we can measure the underlying population of ...
In Town Star ParyWe plan to have a short introduction to night sky of the day followed by an observing session where SJAA volunteers will share views from their personal telescopes. Please refrain from bringing your own telescopes. If you like to be a volunteer with or without a telescope please email at ...
