RockClocks & Supernovae – May 26

Wonderfest Science Envoys are early-career researchers with enhanced communication skills and aspirations. Following short talks on provocative modern science topics, these two Science Envoys will answer questions with insight and enthusiasm:

• UC Berkeley geophysicist Caroline Hasler on Measuring Geologic Time with Rock Clocks — In microscopically small crystals within rocks, radioactive elements decay at predictable rates and function as tiny clocks. These “rock clocks” help us to figure out the timing of major events in Earth history — from the moment of Earth’s formation to the asteroid impact that killed the dinosaurs.

• UC Berkeley astronomer Eli Wiston  on Seeing Core-collapse Supernovae with Radio Telescopes — At the end of its life, a massive star will contract and explode in spectacular fashion, outshining the light of an entire galaxy. While most astronomers focus on the optical light given off by these stellar explosions, there is a wealth of new information to be gained by observing invisible wavelengths. With radio telescopes, we can study new aspects of supernovae: their stars’ activity in the years before death, their environments, and what they leave behind after the explosion fades.

This interactive science presentation, free and unticketed, is produced by Wonderfest in partnership with Marin Science Seminar.