In this hour, TED speakers explain how everything in nature is connected, and how we can restore its delicate balance. Guests include journalist George Monbiot, author Jane Poynter, bioacoustician Bernie Krause, and entomologist Marla Spivak (Original broadcast date: September 27, 2013).

Parenting is fraught with uncertainty, changing with each generation. This hour, TED speakers share ideas about raising kids and how — despite our best efforts — we're probably still doing it wrong. Guests include former Stanford dean Julie Lythcott-Haims, former firefighter Caroline Paul, author Peggy Orenstein, psychologist Dr. Aala El-Khani, and poet Sarah Kay.

Our lives are fueled by trust: in our loved ones, our colleagues, our leaders. But how do we cultivate it, and restore if it's lost? In this episode, TED speakers explore our relationship with trust. Guests include conductor Charles Hazlewood, management theorist Simon Sinek, former Greek Prime Minister George Papandreou, author Rachel Botsman, and psychotherapist Esther Perel. (Original broadcast date: May 15, 2015)

How far would you go to find something that's just out of reach, or maybe not even real? In this hour, TED speakers tell stories about searching for elusive sea creatures and distant aliens. Guests include astronomer Seth Shostak, oceanographer Edith Widder, chef Dan Barber, and humorist John Hodgman. (Original broadcast date: January 9, 2015)

What does it mean to be judged before you walk through the door? What are the consequences? This week, TED speakers delve into the ways racism impacts our lives, from education, to health, to safety. Guests include poet and writer Clint Smith, writer and activist Miriam Zoila Pérez, educator Dena Simmons, and former prosecutor Adam Foss.

We experience powerful emotions all of the time, but what are they exactly? Where do they come from? This hour, TED speakers invoke history, language, science and music to help us think about the way we feel. Guests include writer John Koenig, cultural historian Tiffany Watt Smith, psychologist Lisa Feldman Barrett, developmental researcher Kang Lee, and conductor Michael Tilson Thomas.

It's hard to change habits, but a gentle push can move us in the right direction. This episode, TED speakers offer deceptively simple "nudges" for managing our kids, our health, and our aspirations. Guests include behavioral economist Richard Thaler, psychiatrist Judson Brewer, psychologist Carol Dweck, Girls Who Code founder Reshma Saujani, and economist Sendhil Mullainathan. (Original broadcast date: June 24, 2016)

Why do we harshly judge certain behaviors or conditions, making it harder to talk honestly about them? This hour, TED speakers confront stigmas around addiction, depression, HIV and sex work. Guests include journalist Johann Hari, TV/film producer and mental health advocate Nikki Webber Allen, HIV awareness educator Arik Hartmann, and sex worker and activist Juno Mac.

Humans adapt to physical and creative challenges in remarkable ways. How do we do it, and what happens when we can't? In this episode, TED speakers share inspiring stories about our capacity to adapt. Guests include runner Christopher McDougall, nonprofit founder Daniel Kish, author Rich Benjamin and artist Janet Echelman. (Original Broadcast Date: November 20, 2015)

The past few years have ushered in an explosion of new discoveries about our universe. This hour, TED speakers explore the implications of these advances — and the lingering mysteries of the cosmos. Guests include theoretical physicist Allan Adams, planetary scientist Sara Seager, and astrophysicists Natasha Hurley-Walker and Jedidah Isler.