As long as we've looked up into the starlit sky, people have wondered: Are we alone in the universe? And it’s a question that science takes seriously too, with NASA holding its first ever public meetings into its investigation of UFO reports earlier this spring. Still, given the vastness of the universe, there’s a good chance we’ll never know the answer. But science writer and author of The Possibility of Life, Jaime Green, says it’s still an important question to ask, because it teaches us much about ourselves. She joins guest host David Common to talk about the cutting edge science behind the search for extraterrestrial life... and Star Trek too.

Guest host David Common speaks with CBC Senior Reporter Sam Samson about the latest on Thursday's deadly collision in southwestern Manitoba, Susan Delacourt and Matt Gurney break down the political controversy surrounding Paul Bernardo's prison transfer and the fallout from David Johnston’s resignation as special rapporteur on foreign interference, Jaime Green walks through the cutting edge science behind the search for extraterrestrial life, Michelle Good shares the conversations she thinks we should be having about Indigenous life in Canada, Mark and Sam Pupo invite us into their kitchen to celebrate Father's Day, and Aisha Harris reflects on the intersection of identity and entertainment through pop culture.

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It's been nearly 50 years since philosopher and ethicist Peter Singer published the book Animal Liberation, which helped to define the animal rights movement as we know it today, by suggesting the rights of humans and animals should be given equal consideration. He’s just released an update, Animal Liberation Now. He joins guest host David Common to discuss how the animal rights movement has evolved, and where it needs to go next.

Margaret Evans reports on Trudeau's surprise Ukraine trip and Catherine Belton discusses NATO's long term goals there, Peter Singer talks about the impact of his book Animal Liberation nearly 50 years on, Dr. Melissa Lem looks at the short and long term risks posed by poor air quality, Peter Mitton explores how AI can compromise our ethics, and Jody Rosen shares the history of the bicycle.

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In the latest edition of our monthly challenge That's Puzzling!, guest host David Common competes against one familiar voice and one clever listener in a battle of brain games devised by puzzle master Peter Brown. Playing along this week are Andrew Preville of Kelowna, B.C., and Marcy Markusa, the host of the CBC WInnipeg morning show, Information Radio.

Guest host David Common speaks to Justin Ling, Syrus Marcus Ware and Rachel Giese about the pushback against LGBTQ+ acceptance as Pride season kicks off, Alexei Navalny's press secretary explains why he's facing more jail time, fire expert Mike Flannigan discusses how to improve wildfire management, That's Puzzling! is back, and so is the white whale supspected of being a Russian spy; Gervase Phillips uncovers the history of animal espionage.

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It's something every driver can relate to — that feeling of elation that comes from finding the perfect parking spot and the utter deflation at being unable to find one at all. Slate writer Henry Grabar says parking isn't just a mundane chore or frequent frustration - it can actually tell us a lot about our cities, our pscyhes and our culture. He joins guest host Robyn Bresnahan to talk about his new book, Paved Paradise: How Parking Explains the World.

Naheed Nenshi and Ryan Jespersen tee up the Alberta election, author Michelle Min Sterling discusses her debut novel Camp Zero, Slate writer Henry Grabar reveals how parking explains the world and sociologist Jonathan Kennedy charts the history of human plagues. Plus, the Pulitzer prize-winning poet whose work has a hint about the series finale of Succession.

Colleen Jones has appeared on Canadian television screens for decades. As a broadcaster, she started out covering the supper hour sports beat, went to many Olympic Games and blazed a trail for other women sportscasters. As a curler, she's been a champion for decades, winning her first national title at the age of 22 and then coming back to win the Scotties Tournament of Hearts five more times. Last month Jones retired from broadcasting. She joins guest host Robyn Bresnahan to talk about her sweeping career, and what lies ahead.

Donovan Bailey reveals why he's part of a bid to buy the Ottawa Senator and sports writer Ian Mendes unpacks why the team is such a hot proptery, producer John Chipman visits Alberta to look for the middle ground before the province's election, long time CBC journalist Colleen Jones reflects on her sweeping careers in curling and broadcasting, and we remember celebrated British author Martin Amis.

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