Event Horizon
Our Newsletter, Event Horizon, is a newsletter that is published by the San Mateo County Astronomical Society. It has been in continuous publication since 1960.

September & October

Prez’s Corner

  • Back Under the Stars

    Back Under the Stars

    Greetings to the Society, After our summer break, SMCAS is getting ready to return to a busy fall schedule. September and October bring back our regular meetings, public outreach events, star parties, and plenty of reasons to look up. The nights are getting longer, the weather is hopefully becoming a little more cooperative, and our…

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News

  • CSM’s Annual Family Science Day

    CSM’s Annual Family Science Day

    Download the schedule of events.

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  • Another Fruitful StarBQue and This Year’s Board Members

    Another Fruitful StarBQue and This Year’s Board Members

    The annual StarBQue took place on July 18 at Crestview Park, San Carlos, continuing one of SMCAS’s favorite summer traditions as a relaxed, family-friendly evening for members to gather, share food, and enjoy time together under the sky. Online voting for the 2026–27 officers and at-large directors closed during the StarBQue, and the new Board…

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  • Speaker: Dr. Andrew Rasmussen

    Presentation on September 4, 2026 8:00 pm PST in the CSM Planetarium Speaker: Dr. Andrew Rasmussen, SLAC/Stanford, Staff Scientist, Fundamental Physics Directorate First Look with the Vera C. Rubin Observatory – with the World’s Largest Camera – for the Legacy Survey of Space and Time Free and open to the public. Free parking in nearby…

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Feature

  • Under One Bleeding Moon: A Thousand Stories from the Shadow 

    Under One Bleeding Moon: A Thousand Stories from the Shadow 

    By Sanah Ayyar A lunar eclipse is one of the few geographically indifferent, cosmic spectacles. It does not play favorites and unfolds over the entire night side of the planet at once, no passport required. To the modern us, a lunar eclipse is a spectacular astronomical event caused by Earth passing between the Sun and…

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  • The Lunar Eclipse at Crestview

    By Joe Little A few of us (I recognized Stephen, Andy, and Julian) as well as others including some family attempted to view the lunar eclipse up at Crestview Park. From moonrise and up to basically the point of maximum eclipse, the moon was hidden behind a large blanket of clouds. Right around 9:10 p.m.…

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My Favorite Astronomer

  • Johannes Kepler

    By Mira Krishnan When discussing the giants of space science, names like Galileo or Isaac Newton usually dominate the conversation. However, if you look closer at the history of astronomy, I believe the most compelling story belongs to the 17th-century German astronomer Johannes Kepler. Facing severe physical disabilities, family chaos, and a scientific community that…

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