Richard Binzel, a renowned planetary sciences professor at MIT and inventor of the Torino scale, discusses the recent emergence of asteroid 2024 YR4, which threatens a close approach to Earth in 2032. He outlines global defense measures that have been activated, emphasizing the urgency of preparedness. The conversation dives into how asteroids are monitored, the importance of trajectory predictions, and NASA's innovative techniques for potential asteroid deflection. Binzel connects this to historical events, shedding light on our strategies to mitigate asteroid threats.

Dan Milmo, the global technology editor at The Guardian, discusses the major themes heading into the Paris AI summit. He covers the ramifications of DeepSeek's disruptive launch and its role in spurring an AI arms race. Concerns about AI's energy consumption and geopolitical tensions are also highlighted. Additionally, insights from young attendees at the Alan Turing Institute’s Children's AI summit reveal their hopes and fears about AI ethics and regulation, stressing the importance of involving youth in shaping future policies.

Jessica Glenza, a US health reporter for The Guardian, sheds light on RFK Jr.'s confirmation hearings for Secretary of Health and Human Services. She discusses his vaccine skepticism and the diverse support for his 'Make America Healthy Again' campaign, from wellness enthusiasts to traditional Republicans. The conversation delves into the implications of his stance on public health, potential priorities in his role, and how political rhetoric is reshaping perceptions of science and health policy in America.

Dive into the dynamics of exercise guidelines and discover if they're one-size-fits-all. Explore how age influences fitness, and find out which strength training exercises suit various backgrounds. Uncover the synergy of nutrition with adequate protein and carbs post-workout for optimal recovery. Delve into vegan protein options, focusing on quality and quantity for muscle health. Plus, enjoy lighthearted debates on fitness preferences that keep the conversation engaging and relatable!

Listeners' health questions spark fascinating discussions! Discover scientifically backed ways to cut sugar and navigate cravings with tips on habit formation. Dive into the complex world of the immune system, exploring why some stay healthy while others fall sick easily. Unpack the truth behind seed oils: their health impacts and common misconceptions. Gain valuable strategies for sustainable health as you prepare for 2025!

Keon West, a social psychology professor at the University of London and author of "The Science of Racism," dives deep into the mechanics of racial bias and its implications. He discusses significant studies on unintentional racism in education, revealing how biases can distort teacher perceptions of students. The conversation also touches on systemic disadvantages for ethnic minorities and the surprising voting patterns in 'Strictly Come Dancing,' underscoring how racism infiltrates popular culture. West advocates for intergroup contact as a key approach to dismantling these biases.

Chris French, an emeritus professor of psychology at Goldsmiths University and author of "The Science of Weird Shit," dives into the controversial world of telepathy. He discusses how scientists have rigorously tested claims of mind reading, revealing the reliance on nonverbal signals and subconscious cues. Anecdotal evidence is juxtaposed with skepticism from the scientific community. French also addresses why the allure of telepathy persists despite a lack of solid evidence, and what it could mean for beliefs in psychic phenomena.

This discussion dives into bold science predictions for 2025, reflecting on last year's surprises in health and technology. Expect to hear about new developments with Mpox and advancements in malaria vaccines. Innovations in cancer therapy and obesity treatments are on the rise. The conversation also touches on exciting projects in space exploration and the role of AI in scientific breakthroughs. Plus, there's a nod to the future of particle physics and the importance of independent journalism in documenting these changes.

Albert van Dijk, a Professor of water science and management at the Australian National University, delves into the alarming trends of 'weather whiplash' affecting California and beyond. He explains how rising temperatures are causing unpredictable swings between floods and fires, particularly during what should be wet seasons. The conversation highlights the impact of a disrupted water cycle, with extreme rainfall and drought coexisting. Van Dijk emphasizes the need for effective water management strategies to combat these escalating climate challenges.

Gloria Mark, a Professor of Informatics at UC Irvine and author of Attention Span, discusses the alarming decline in our ability to focus, revealing that office workers' attention spans have plummeted from 2.5 minutes to just 47 seconds in two decades. She connects this trend to the pervasive influence of digital distractions. Mark believes we can reclaim our concentration with practical strategies like taking breaks and utilizing visual reminders. She also explores how personality traits shape our attention, advocating for a rethinking of how we approach focus.