Speaker: Larry Rudnick, Ph. D.
Minnesota Institute for Astrophysics
Topic: A Walk on the Dark Side
Our Universe is comprised of far more than meets the eye. For 13.8 billion years, gravity has been creating enormous bound structures, the largest of which are clusters of galaxies. Modern telescopes are uncovering an astonishing variety of structures in these clusters which are invisible to the human eye — from X-ray emitting gas at 100s of millions of degrees, to supermassive black holes at the centers of cluster galaxies, to the popularized but not yet understood dark matter that holds everything together. Even the enigmatic dark energy plays a role in cluster formation. Our tour of clusters will start with the first recognition of curious concentrations of fuzzy objects in the sky to the latest discoveries using telescopes across the Earth and space. Prof Rudnick’s lecture will be followed by a Q&A session.
Monthly meetings are open to all – you needn’t be an MAS member to attend. These meetings normally take place the first Thursday of each month at the Fairview Community Center in Roseville (“Great Room”). Monthly meetings start at 7:00 p.m. and last about two hours.
Each meeting features Board member introductions, general announcements, “Better Know a Constellation”, normally presented by a member, main speaker (around 45 minutes duration) and an after-meeting social gathering. Society business is occasionally transacted as needed.
NOTE: Meeting time and / or location sometimes change to take advantage of special program opportunities. Please check the MAS homepage and/or recorded message at 952-467-2426 for the latest information regarding the meeting.