Luma Mufleh does something revolutionary: she coaches soccer. A Jordanian immigrant and Muslim of Syrian descent, Mufleh is determined to empower refugee children everywhere.

Nagin Cox explores Mars as part of the team that operates NASA's rovers.

Jacqueline Novogratz works to enable human flourishing. Her organization, Acumen, invests in people, companies and ideas that see capital and networks as means, not ends, to solving the toughest issues of poverty.

Paul Nicklen photographs the creatures of the Arctic and Antarctic, generating global awareness about wildlife in these isolated and endangered environments.

Race car entrepreneur

Hamish Jolly brings his entrepreneurial eye to the rare but viscerally terrifying issue of shark attacks.

Eldra Jackson III works daily to connect to his most authentic self -- and his calling is to support others in doing the same.

Kio Stark explores the myriad ways encounters with strangers impact our lives.

With precision and sparkling grace, Ananda Shankar Jayant performs and teaches the classical dance styles of Bharatanatyam and Kuchipudi.

With a camera, a dedicated wheatpasting crew and the help of whole communities, JR shows the world its true face.

Peter D. Ward studies life on Earth -- where it came from, how it might end, and how utterly rare it might be.

Cofounder and chief solutionist of global agency Futerra, Solitaire Townsend argues that the creative industries can’t be neutral in the face of the climate crisis.

Thordis Elva is one of the two authors of "South of Forgiveness," a unique collaboration between a survivor and perpetrator of rape.

Susan Pinker reveals how in-person social interactions are not only necessary for human happiness but also could be a key to health and longevity.

Daily Beast columnist and co-host of the "Democracy-ish" podcast, recovering attorney, playwright, author and exhausted dad Wajahat Ali celebrates the diverse narratives of the United States and advocates for a more inclusive cultural landscape.

Boniface Mwangi is an award-winning Kenyan photographer, artist and activist. He is a TED Fellow.

BCG's Dustin Burke advises companies on transforming operations and optimizing their networks in the face of changing supply chain environments.

Matt Johnson has played on some of the most critically acclaimed records in almost everyone's collections.

Joseph Redmon works on the YOLO algorithm, which combines the simple face detection of your phone camera with a cloud-based AI -- in real time.

Dermatologist Richard Weller wants to know: Why are Scots so sick?

Jessica Jackley is the co-founder of Kiva.org, an online community that helps individuals loan small amounts of money, called microloans, to entrepreneurs throughout the world.

A key player in the "Boston miracle" that lowered the rate of youth crime and gang violence, Rev. Jeffrey Brown is a Baptist minister.

Sitawa Wafula started Kenya's first free mental health and epilepsy support line.

Jennifer Wilcox works on ways to test and measure methods of trace metal and carbon capture, to mitigate the effects of fossil fuels on our planet.

Gavin McCormick is a cofounder of the Climate TRACE coalition, which combines satellites and artificial intelligence to detect human-caused greenhouse gases from all major sources.

In her performances she’s been cut, burned, and nearly shot -- but Marina Abramović's boldest work yet is a gargantuan institute dedicated to transformation through art.

Soraya Chemaly writes and thinks about social justice.

Cat Laine has made it her mission to find solutions to the problems that face the world’s poor, by merging innovation and the entrepreneurial spirit.

Matt Trombley is an active, passionate and service-driven leader in both his workplace and his personal life.

Paul Root Wolpe examines the ethical implications of new science -- genetic modification, neuroscience and other breakthroughs that stretch our current philosophy to the breaking point. He's the chief bioethicist at NASA, among other appointments.