Céline Gounder, an internationally renowned infectious disease specialist, discusses the intersection of demographic shifts and health issues like opioid overdoses. Jackie Faherty, an astrophysicist, shares insights on groundbreaking findings from the James Webb Space Telescope, including methane emissions from distant celestial bodies. Kevin Reed, a chief climate scientist, highlights the urgency of addressing climate change through renewable energy innovations while connecting these challenges to public health and technological advancements.