All Space Considered – September 2025
Griffith Observatory broadcasts this public program live from the Leonard Nimoy Event Horizon Theater on the third Thursday of every month. Join the Observatory's curatorial staff as they examine and explain the most-talked-about subjects in astronomy and space science. It is free to attend in-person or stream on YouTube.
Upcoming All Space Considered
All Space Considered is excited to welcome this month’s guest, Dr. Gabriele Vajente! Join us as he presents his talk, “Ten Years of Exploring the Dark Side of the Universe with Gravitational-wave Astronomy.”
Griffith Observatory broadcasts this public program live from the Leonard Nimoy Event Horizon Theater on the third Thursday of every month. It is free to attend in-person or stream on YouTube. Foundation members receive priority seating to All Space Considered, among other benefits. By joining the Foundation, you take part in supporting Observatory programs like this one.
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Special Guest
DR. GABRIELE VAJENTE is the Deputy Head of System Science and Engineering of the LIGO Laboratory at Caltech, a national laboratory devoted to the observation of gravitational-wave signals from astrophysical objects such as colliding black holes and neutron stars. Gabriele is a physicist by education, and he has worked at the design, construction, and operation of the largest gravitational-wave interferometric observatories in the world. He obtained his Ph.D. in experimental physics at Scuola Normal Superiore in Pisa, Italy, and he’s been working in the LIGO laboratory in various roles for more than ten years. When he’s not working to increase the reach of the LIGO observatories, Gabriele likes to spend time running in the mountains or with his own telescope under dark skies in the desert.
Guest Topic
TEN YEARS OF EXPLORING THE DARK SIDE OF THE UNIVERSE WITH GRAVITATIONAL-WAVE ASTRONOMY Ten years ago the first gravitational-wave signal from the collision of two black holes was detected by the LIGO Observatory. Gravitational waves are ripples in space-time, generated by some of the most energetic astrophysical events in the universe. Since then, in only ten years, gravitational-wave science has grown to be one of the most important new fields in astronomy. Dr. Vajente will explore what we have learned about our universe since that first signal, how LIGO detects gravitational waves, and what the future holds for the field.
YouTube Link