Mt. Tam

Saturday, April 21, 2018, 8:00 pm: Mt. Tam Astronomy Night - A Universe of Universes? - Reflections on Life and the Cosmos

Mt. Tam Astronomy Night - A Universe of Universes? - Reflections on Life and the Cosmos

Presented by Mt Tamalpais State Park, Friends of Mt Tam, Wonderfest, and the San Francisco Amateur Astronomers

Mt Tam Enthusiasts- Spring is here and its time to start our annual series of talks + observing on Mt Tam. Thanks to our faithful followers and dedicated volunteers, this is our 30th season! And we have a great line up for you! You can view it at

This is the first of the series of programs for 2018. Mark your calendar and plan now to join us for 8 wonderful evenings of EDUTAINMENT under the stars!

Featuring: Alex Filippenko, Professor of Astronomy, UC Berkeley

Many scientists now think that there might be more than a single universe. Our universe may be just one example in a far larger “multiverse," but an unusually complex one that is conducive to the existence of life. Come learn about the relevant lines of reasoning and their profound implications.

If you attended our opening program last season you were no doubt inspired to view the Great All-American Total Eclipse by Alex Filippenko's charismatic speaking style.  This year he will broaden our understanding of the Universe at Large.  

Alex Filippenko is the Richard & Rhoda Goldman Distinguished Professor in the Physical Sciences, and a Miller Senior Fellow in the Miller Insitute for Basic Research in Science (UC Berkeley). His accomplishments, documented in more than 870 research papers, have been recognized by several major prizes, including a share of both the Gruber Cosmology Prize (2007) and the Breakthrough Prize in Fundamental Physics (2015). One of the world's most highly cited astronomers, he is an elected member of the National Academy of Sciences (2009) and the American Academy of Arts and Sciences (2015). In 2017, he was selected for the Caltech Distinguished Alumni Award. He has won the most prestigious teaching awards at UC Berkeley and has also been voted the "Best Professor" on campus a record 9 times. Selected in 2006 as the Carnegie/CASE National Professor of the Year among doctoral institutions, he has also received the Richard H. Emmons Award for undergraduate teaching (2010). He produced five astronomy video courses with "The Great Courses", coauthored an award-winning astronomy textbook, and appears in more than 100 TV documentaries, including about 50 episodes of "The Universe" series. He has given about 1000 public lectures or other presentations, and he was awarded the 2004 Carl Sagan Prize for Science Popularization. An avid tennis player, hiker, skier, whitewater rafter, snorkler, and scuba diver, he enjoys world travel and is addicted to observing total solar eclipses (16 so far, all successful).

NEW THIS SEASON- We have new directives from the State Park which will impact our programs and you, our patrons.

1. HOURS- The programs will start and end earlier than in past seasons.  Note that most

                   programs (April-Aug minus July's movie night) will start at 8:00pm while July's

                   movie night and Sept start at 7:30pm and Oct starts at 7:00pm.  All obsevring

                   will STOP at 10:15pm to be sure all cars out of the park by 10:30pm

2. REGISTRATION AND PARKING PASSES-Our audience members parking at Rock Spring

                   Parking Lot are requested to register and download a parking pass to display on

                   your dash.  The gate at Pan Toll will be closed at Sunset (State Park closure time)

                   and only cars with printed parking passes will be allowed entry after Sunset.

                   Vehicles remaining in the park after 10:30pm may be cited.

                   Log on to to register and download your pass.  

                   One pass pervehicle, so make this a little easier by CAR POOLING.  

                                                         PROGRAMS ARE STILL FREE. 

The Mt Tam Astronomy Programs are sponsored by the Mt Tamalpais State Park, organized by the Friends of Mt Tam and Wonderfest the Bay Area Beacon of Science and are followed by star parties (laser tours of bright

objects and telescope viewing)  in the Rock Spring Parking Lot by the San Francisco Amateur Astronomers.

The evenings are FREE and open to the general public. Families and youth groups are encouraged to attend.

If some topics are too advanced for the younger members of your party they can always go down to the telescopes earl.


  • Register your car and download a PASS to Park at Rock Spring parking lot and CARPOOL if possible
  • Dress appropriately, it can be cold in the evenings on the mountain
  • Bring a flashlight to help navigate your way from the theater to the telescopes and cars
  • Help us inform others about these programs
  • IF the weather is questionable the day of the event, call our hotline: 415-455-5370 after 3:30pm. Any cancellations will be posted. Note that cloudy weather and/or high winds may prevent observing through the telescopes, but generally don’t stop the lectures.  Talks are cancelled only for rain or fire danger.

Register | Learn More

Event Type: Educational and Interpretive