Astronomer Wendy Freedman, a University Professor at the University of Chicago, discusses humanity's quest to measure the expanding universe. She highlights the "Hubble Tension"—a scientific

Astronomer Wendy Freedman, a University Professor at the University of Chicago, discusses humanity's quest to measure the expanding universe. She highlights the "Hubble Tension"—a scientific mystery where cosmic expansion rate measurements don't match. Freedman explains how the James Webb Space Telescope is achieving unprecedented accuracy, suggesting this conflict may signal new physics. Her work inspires future generations to pursue revolutionary cosmic discoveries.

A trailblazer in observational cosmology, Professor Freedman previously directed the Carnegie Observatories and chaired the Giant Magellan Telescope project. Named one of TIME100's most influential people in 2025, she currently leads a James Webb Space Telescope program. This TEDx talk is available at ted.com/tedx.