Stargazing Lecture

Stargazing is dependent on clear weather, but lecture and Q&A happen regardless. Event will occur in-person, with lecture and Q&A additionally live-streamed on YouTube.

For remote viewers, the event will be live-streamed here:
https://www.youtube.com/live/J-mNufzE8sA

8:00–8:45 p.m. - Public Lecture
8:45–9:45 p.m. - Panel Q&A and Guided Stargazing

Though physics has made great progress, basic questions about what is going on inside an atom remain open. We know that atoms are made of protons, neutrons, and electrons. But, what exactly is an electron? According to one picture, the electron is a tiny (perhaps point-sized) particle that moves around the atom's nucleus. Because the electron acts in some ways like a spinning charged body, it is said to have a property called "spin." However, it does not actually rotate (like a spinning top). According to a second picture, the electron is a swirling cloud of energy and charge. The electron truly spins. Examining this debate will take us on a tour through classical electromagnetism, quantum mechanics, quantum field theory, and the philosophy of physics.

About the Series

Stargazing Lectures are free lectures at a public level followed by a Q&A panel and guided stargazing with telescopes (weather permitting). All events are held at the Cahill Center for Astronomy and Astrophysics at Caltech and are free and open to all. No reservations are needed. Lectures are 30 minutes; stargazing and panel Q&A last 60 minutes. Stay only as long as you want.

Stargazing is only possible with clear skies, but the lecture and panel Q&A take place regardless of weather.

For directions, weather updates, and more information, please visit: http://outreach.astro.caltech.edu.