Eclipse chaser David Baron and astrophysicist Dr. Regina Barber discuss the surreal experience of witnessing a total solar eclipse, including sensations and lighting effects in the sky. They explore the impact of viewing a solar eclipse and share insights on the upcoming total solar eclipse on April 8.

Regina Barber, a dynamic host engaged in cosmology, invites two leading cosmologists to delve into the intricacies of the Big Bang. They discuss how this pivotal moment is more of a sprawling era than a singular event. Key topics include the serendipitous discovery of cosmic microwave background radiation, its role in revealing the universe's early conditions, and its implications for dark matter theories. The conversation underscores the collective effort in scientific discovery, highlighting how knowledge builds across generations in our quest to understand the cosmos.

Regina Barber, a dynamic host who connects with scientists, sits down with two expert cosmologists to unravel the Big Bang theory. They explore how this concept isn’t just a single moment but a significant period in the universe's history. The discussion highlights the cosmic microwave background and its revolutionary implications for understanding the early universe. Listeners will discover how the universe cooled and evolved, shedding light on its origins and the ongoing mysteries that captivate scientists today.

A Massachusetts elementary school welcomes "Huntah," the COVID-sniffing dog. Scientist-in-residence Regina Barber talks with NPR science reporter Ari Daniel about how a specialized K-9 unit is helping keep kids in classrooms.For more of Ari's reporting, check out "Dogs trained to sniff out COVID in schools are getting a lot of love for their efforts."You can follow Regina on Twitter @ScienceRegina and Ari on Instagram @mesoplodon_. Email Short Wave at ShortWave@NPR.org.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

The world has come a long way since the COVID-19 pandemic began. There are now vaccines, at-home tests, masks and treatments. With all of these tools available, why is COVID still here?Health policy correspondent Selena Simmons-Duffin talks to Scientist-In-Residence Regina Barber about what we can learn from the public health advocates working to end the HIV epidemic, how those lessons may translate to ending COVID and why having the scientific tools isn't enough.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy