"Galaxy Clusters: Giants of the Universe - Producer's Cut" by Brian Hart, Ph.D.



Monthly General Meeting

The OCA has a general meeting held on the second Friday of every month* at Chapman University.

Galaxy Clusters: Giants of the Universe - Producer's Cut

Galaxy Clusters: Giants of the Universe - Trailer from Brian Hart on Vimeo.

The latest version of a new documentary project, "Galaxy Clusters: Giants of the Universe," is presented. Clusters of galaxies are the largest gravitationally bound objects in the Universe. A standard measure of their size extends from 3-15 million light-years (approx 1-5 Mpc) across. The warm gas in between the galaxies of the clusters reaches temperatures of 10 million to 1 billion Kelvins. This makes it shine brightly in the X-rays, and assuming that the gas is in hydrostatic equilibrium, the gas is used as a tracer of the dark matter content of the cluster. The high-level structure of galaxy clusters was studied by Dr. Hart through using Chandra X-Ray Observatory data to investigate the structure and behavior of the Universe as a whole.

The movie follows the story of Chandra and documents the achievements by women in space and astronomy. Dr. Hart leads us out from Earth to where the galaxy clusters roam in the depths of the Universe and tells the story of dark matter, dark energy, and the quest to understand the workings of the Universe.

"Galaxy Clusters: Giants of the Universe" is rated NR by the Motion Picture Association of America (MPAA).

Brian Hart

Originally from Minneapolis/Saint Paul, Minnesota, Brian Hart obtained his Ph.D. in Astrophysics from the Center for Cosmology at the University of California, Irvine in 2008. Since this, he has held a position as a Federal physicist with the U.S. Army and numerous software engineering positions. In his spare time, Dr. Hart continues to devote himself toward advancing public understanding of science, partially through the movie project being presented at tonight's talk. Dr. Hart is also the Founder and Past Director of the SoCal Science Cafe organization. Dr. Hart currently works full-time with a small software company in Encinitas, California, runs his own software company as well, and resides in San Diego.

 These meetings are free and open to the general public.

The meetings take place in The Irvine Lecture Hall with seating for approximately 250 people.

The Irvine Lecture Hall (located adjacent to the Hashinger Science Center) is near the south east corner of the campus
and the nearest cross street is East Palm Ave and North Center Street.

The meetings start promptly at 7:30 PM.

The basic agenda, with approximate times, is as shown below.

7:00 PM - 7:30 PM Pre-meeting Slide Show

Arrival of audience. This presentation includes recent astronomical photographs taken by OCA members.

7:30 PM - 7:45 PM Club Announcements
Usually presented by the OCA Secretary, Bob Buchheim.

7:45 PM - 8:15 PM "What's Up?"
Usually presented by OCA Member and Space Artist, Chris Butler.

8:15 PM - 9:15 PM Main Talk
Speakers are often from JPL/Caltech and other major educational and astronomical institutions.
The level of the talks are usually appropriate for anyone who has an interest in this hobby.

9:15 PM - 9:30 PM Refreshments
Break Donuts, coffee, soda are available for a small donation.

9:30 PM - 10:00 PM "Ask an Astronomer"
Anyone can stay behind and ask a panel of experts any burning question related to this hobby.

Join or login to comment.

  • Dr. Brian H.

    To learn more about the Chandra X-Ray Observatory, check out its websites:

    And check out the movie's official Facebook page:

    January 14, 2013

  • Dr. Brian H.

    I enjoyed myself immensely

    January 12, 2013

  • Dr. Brian H.

    An email went out with important logistics information. Look for it!

    January 11, 2013

  • Dr. Brian H.

    Check out the Facebook page for the movie!

    January 10, 2013

  • Dr. Brian H.

    Just a tip: arrive early. There is a lot of talk about this movie and I am thinking there will be a full house. Seats are first-come, first-serve with standing room. The hall doors open at 7:00 PM.

    January 8, 2013

  • Dr. Brian H.

    A flyer has been posted to a location online for anyone to download. Just print it out and hand it around to your friends, or your fellow students in your class, or the students you are teaching, or your co-workers etc.

    Download it here:

    January 7, 2013

  • Dr. Brian H.

    For those who want to stay up late there is an after party. After 10
    pm we are heading to the party room of the Denny's on 2005 E Katella Ave in Anaheim, CA 92806. It's between the 5 and the 57. Location subject to change. Come up to the front after the event and ask me if its different. Due to logistics it's very difficult to do anything together before the event.

    January 4, 2013

    • jane e.

      Hi Brian - I am going to try to make the after party also. I think you and I worked on the Sigma Xi chapter at UCI together a few years back.

      January 5, 2013

    • Dr. Brian H.

      I'm so glad you reached out, Jane! I'm just so excited

      January 5, 2013

  • Dr. Brian H.

    Join the conversation! Go to this events web page and scroll down to the "Comments" box. This is great for disseminating last minute info. Watch this space for updates/changes from me as the event draws closer. I still have to reconfirm where the afterparty is, for example. So stay tuned to these messages for the latest! I'm just so excited for this event.

    Be sure to also send all your friends the link to the event page so they can come. Come early before 7:30 pm because seating is limited and it's general admission. The hall opens at 7:00 pm.

    The event website link is:

    January 5, 2013

  • Dr. Brian H.

    Thanks for signing up for this event! Tell your friends and spread the word by sharing this RSVP link:

    January 4, 2013

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