Are we alone in the universe?

The climate is changing. So are we. On What On Earth, you’ll explore a world of solutions with host Laura Lynch and our team of journalists. In 1970, 20 million people showed up to fight for the environment on the first Earth Day. More than five decades later, is it time for this ...  Show more

Tai tries to do his part by recycling whenever he can. But it turns out just tossing stuff into the blue bin doesn't do a whole lot: less than 10 percent of our plastic waste actually gets recycled, with the rest either ending up in landfill, burned or shipped overseas! How did w ...  Show more

We now know that the universe is vast and filled with billions of stars. But where could we find life? It's such a big place to search, so why not start with our own solar system. What are we doing to search for life here? Natasha Carr, a PhD candidate studying physics and space ...  Show more

3/6 In this instalment of The Curious Cases of Rutherford & Fry, Hannah and Adam boldly go in search of scientists who are hunting for ET, spurred on by questions sent in by listeners across the globe, from Australia to Columbia. They start by asking how we define life and why we ...  Show more

"Life makes our planet an incredibly exotic place compared to the rest of the known universe," says astrobiologist Betül Kaçar, whose research uses statistics and mathematical models to simulate ancient environments and gather insights into the origins of existence. In this fasci ...  Show more

<span style="font-weight: 400;">Sam Harris speaks with Neil deGrasse Tyson about our place in the universe. They discuss our current understanding of extra-solar planets, the prospect that there is complex life elsewhere in the galaxy, the Fermi problem, the possibility that a ...