This Perimeter Institute (PI) for Theoretical Physics event, ”Dispatches from the Hidden Universe” won’t take place until Wednesday, September 10 [2025]. Here are the details for getting a ticket or two this Monday morning (if you can attend in person; there is a virtual attendance alternative, more about that later in this post), from an August 22, 2025 PI announcement (received via email),
Dispatches from the Hidden Universe with Sarah Shandera
Wednesday, September 10 [2025 at 6:45 pm ET
You’re invited to an exclusive public lecture with Sarah Shandera, Professor of Physics and the Director of the Institute for Gravitation and the Cosmos at Penn State [Pennsylvania State University].
Humanity can observe more of the universe than ever before. In the last year, we’ve detected signatures of cosmic events almost unimaginably distant and old. Yet much of the universe remains hidden — some parts unknown because we don’t yet understand how to see them, and others forever hidden beyond cosmic horizons. This talk will be a tour through the hints we have of the still-hidden workings of the universe, and of our best ideas to uncover them. This exploration requires reframing the way we build theories, including quantum theories, and embracing our role as imperfect observers. In doing so, we might convince the universe to give up the deepest secrets of its fundamental structure.
Don’t miss out! Free tickets to attend this event in person will become available on Monday, August 25, [2025] at 9 am ET.
If you didn’t get tickets for the lecture, not to worry – you can always catch the livestream on our website or watch it on YouTube after the fact.
The event registration page has more details,
Date and time
Starts on Wednesday, September 10 [2025] · 6:45pm EDT
Location
Perimeter Institute for Theoretical Physics 31 Caroline Street North Waterloo, ON N2L 2Y5
Agenda
6:00 p.m.
Doors Open
Perimeter’s main floor Atrium will be open for ticket holders, with researchers available to answer science questions until the talk begins.
6:45 p.m. – 6:45 p.m.
Doors Close
Theater doors close to ensure all guests have enough time to enter and be seated by our ushers.
7:00 p.m. – 8:00 p.m.
Public Talk
The talk will begin at 7:00 PM, offering a live stream for virtual attendees. This will include a full presentation in the Theatre as well as a Q&A session.
8:00 p.m. – 8:30 p.m.
Atrium (Optional)
After the talk, head to the Atrium to mingle with other attendees and meet the speaker.
…
About the Speaker
Sarah Shandera is a Professor of Physics and the Director of the Institute for Gravitation and the Cosmos at Penn State. She received her PhD in physics from Cornell University in 2006 and held postdoctoral positions at Columbia University’s Institute for Strings, Cosmology, and Astroparticle Physics and at Perimeter Institute for Theoretical Physics before joining the faculty at Pennsylvania State University in 2011..
Tickets
Registration to attend the event in person will open on Monday, August 25 , [2025] at 9:00 AM EDT. Tickets are free and must be reserved through Eventbrite, as there is no on-site box office.
TICKETS ARE VALID UNTIL 6:45 PM THE DAY OF THE EVENT.
The talk will also be live-streamed on our YouTube channel at 7 p.m. EDT: https://www.youtube.com/@PIOutreach
Enjoy!