The Christa McAuliffe Center at Framingham State University opens its planetarium for free public presentations, and this month it’s the screening of a full-dome film, Phantom of the Universe:  The Search for Dark Matter, on February 10, with two one-hour shows.  Each screening will be followed by a discussion and a tribute to the late Vera Rubin, a pioneer in the exploration of dark matter.  Unlike other Christa McAuliffe Center presentations, this event is aimed for high-school students and above.  Register for either the 5:30PM show or the 6:30PM show for the general public.  For future shows, registration opens two weeks prior to each event via links on this page listing upcoming events.