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Penn State Extraterrestrial Intelligence Center

This symposium will be a broad look at SETI, including new technosignature search results and upper limits, new search methodologies and instrumentation, theory, and social aspects of the field including the post-detection protocols, message construction, and the historical roots of the field. Interdisciplinarity will be emphasized. As with previous instances, we encourage the submission of proposals for breakout sessions for workshops, tutorials, or special sessions on narrower topics. Early career researchers are especially encouraged to attend.

Abstract submission for breakout sessions, plenary talk proposals, and funding requests will be open until May 31, 2025.

Abstract submission for posters will be open until August 1, 2025.

The PSETI Center;     Email: PSETI.symposium@gmail.com

SETI, astrobiology, technosignatures

Arizona State University

Since 1963, the Texas Symposium on Relativistic Astrophysics has been one of the most important international conferences in astronomy and physics. Traditionally, it moves around the globe and takes place in different cities every two years.

The 33rd Texas Symposium on Relativistic Astrophysics will take place in the vibrant city of Tempe, AZ from December 8 – 12, 2025. The event will be hosted at The Omni Hotel very near Arizona State University which offers state-of-the-art facilities to ensure a productive and enjoyable meeting.

We are thrilled to announce that John Mather, Jim Peebles, Adam Riess, George Smoot (TBC), and Frank Wilczek have already agreed to participate and attend the symposium.

Beyond the symposium, Tempe in December offers a perfect blend of outdoor adventures and festive activities, making it an ideal winter getaway. The mild temperatures invite visitors to explore the scenic beauty of Tempe Town Lake, hike the iconic Hayden Butte, or stroll through the Desert Botanical Garden. You can also experience the Tempe Fantasy of Lights Boat Parade, a dazzling display of holiday lights along the lake. The city hosts various seasonal events, including holiday markets, outdoor concerts, and ice skating rinks, offering attendees a chance to enjoy the warm desert climate while celebrating the holiday season.

The symposium will cover all major topics on high-energy and particle astrophysics, cosmology and relativity. It will include morning plenary sessions and afternoon parallel sessions which will function as mini-symposia in each sub-field. The plenary sessions will consist of ~45 min review talks. The afternoon sessions will feature oral talks (about 15-30 min) and poster contributions.

We look forward to welcoming hundreds of international astronomers and physicists to Arizona in December 2025!

Texas Symposium Admin;     Email: txsymp2025@asu.edu

cosmology, physics, astrophysics, earth and space exploration

American Physical Society (APS)