Today on Boston Public Radio:

We began the show by talking with listeners about yesterday’s primary election results.

Neil deGrasse Tyson shared his upcoming lecture “The Search for Life in the Universe” at the Wilbur Theatre on Sept. 29. deGrasse Tyson is an astrophysicist and the author of the best-selling “Astrophysics for People in a Hurry,” among other books. He is the director of the Hayden Planetarium at the American Museum of Natural History, where he has served since 1996. deGrasse Tyson’s new book coming out later this month is “Starry Messenger: Cosmic Perspectives on Civilization.”

Geoff Diehl discussed his primary win for the Republican nominee for governor of Massachusetts, and the policy changes he would make regarding drivers’ licenses for undocumented immigrants, abortion, and more. Diehl is running for governor on the Republican ticket and will face Attorney General Maura Healey in November.

Juliette Kayyem updated us on the latest news from the investigation into former President Donald Trump’s possession of classified documents. Kayyem is the former assistant secretary for Homeland Security under President Barack Obama, and the faculty chair of the Homeland Security program at Harvard’s Kennedy School of Government. Her new book is: “The Devil Never Sleeps: Learning to Live in an Age of Disasters.”

Bill McKibben talked about eastern Europe’s adoption of heat pumps in response to gas shortages related to the war in Ukraine. McKibben is the co-founder of 350 DOT ORG and founder of Third Act Dot Org. He has a newsletter on Substack titled “The Crucial Years.” He’s also got a new, serialized book titled, “The Other Cheek: An Epic Nonviolent Yarn.”

We then asked listeners how the back-to-school season is going.

Brian O’Donovan shared his recent cancer diagnosis, and explained how he’s finding hope. O’Donovan is the host of “A Celtic Sojourn” at GBH.