Nobel Peace laureate Jody Williams brings tough love to the dream of world peace, with her razor-sharp take on what "peace" really means, and a set of profound stories that zero in on the creative struggle -- and sacrifice -- of those who work for it.

Marie Skłodowska Curie's revolutionary research laid the groundwork for our understanding of physics and chemistry, blazing trails in oncology, technology, medicine, and nuclear physics, to name a few. But what did she actually do? Shohini Ghose expounds on some of Marie Skłodowska Curie's most revolutionary discoveries. [Directed by Anna Nowako...

With the invention of the atomic bomb, humanity gained the power to destroy itself for the first time in our history. Since then, our risk of either extinction or the collapse of civilization has steadily increased. Just how likely are we to destroy ourselves? And what poses the greatest threat to our survival? Dig into four existential threats ...

Hundreds of meters below the surface of the ocean, Laura Robinson probes the steep slopes of massive undersea mountains. She's on the hunt for thousand-year-old corals that she can test in a nuclear reactor to discover how the ocean changes over time. By studying the history of the earth, Robinson hopes to find clues of what might happen in the ...

Is there a way to detect diseases like cancer and Alzheimer's before they advance too far? Doctors are using injected radioactive drugs that circulate through the body and act as a beacon for PET scanners. These diagnostic tools can detect the spread of diseases before they can be spotted with other types of imaging. So how exactly does this wor...

After witnessing the atrocities of his fellow man in World War II, William Golding was losing his faith in humanity. Later, during the Cold War, as superpowers began threatening one another with nuclear annihilation, he was forced to interrogate the very roots of human nature and violence. These musings would inspire his first novel: "Lord of th...

For the last 17 years, I've had the good fortune of participating in TED, both as a listener and a speaker. The talks often move me to tears. Listening to stories of passion, dedication and triumph remind me of how truly amazing humans can be. Below are some of my favorites.

Joe Lassiter focuses on one of the world’s most pressing problems: developing clean, secure and carbon-neutral supplies of reliable, low-cost energy all around the world.

Concerned about the war Ukraine? You're not alone. Historian Yuval Noah Harari provides important context on the Russian invasion, including Ukraine's long history of resistance, the specter of nuclear war and his view of why, even if Putin wins all the military battles, he's already lost the war. (This conversation, hosted by TED global curator...

In 1944, amateur astronomer Hisako Koyama's latest endeavor was sketching the sun's shifting surface. She spent weeks angling her telescope towards the sun and tracking every change she saw with drawings. Little did she know, these drawings were the start of one of the most important records of solar activity in human history. Alex Gendler detai...

Isabelle Boemeke is the world's first nuclear energy influencer.

Musician Ryuichi Sakamoto picks his favorite talks on ideas -- both musical and beyond. "Each talk expresses a vision no one else can have," he says. "They're a triumph of uniqueness and originality."

Amazing inventions, activism and tons of genius delivered by an awesome group of kids and teens.

Ralph Langner is a German control system security consultant. He has received worldwide recognition for his analysis of the Stuxnet malware.

At 14, Taylor Wilson became the youngest person to achieve fusion -- with a reactor born in his garage. Now he wants to save our seaports from nuclear terror.

The coronavirus brought much of the world to a standstill, dropping carbon emissions by five percent. Al Gore says keeping those rates down is now up to us. In this illuminating interview, he discusses how the steadily declining cost of wind and solar energy will transform manufacturing, transportation and agriculture, offer a cheaper alternativ...

Was 2017 really the "worst year ever," as some would have us believe? In his analysis of recent data on homicide, war, poverty, pollution and more, psychologist Steven Pinker finds that we're doing better now in every one of them when compared with 30 years ago. But progress isn't inevitable, and it doesn't mean everything gets better for everyo...

We all know about the climate crisis. We all want to stay informed — but the information can be overwhelming. Watch these talks to hear what’s at stake and find out what's being done.

Marilyn Waring advocates for a public policy database that recognizes all unpaid work -- and the preservation of ecosystems -- instead of relying on GDP.

When first discovered in 2010, the Stuxnet computer worm posed a baffling puzzle. Beyond its sophistication loomed a more troubling mystery: its purpose. Ralph Langner and team helped crack the code that revealed this digital warhead's final target. In a fascinating look inside cyber-forensics, he explains how -- and makes a bold (and, it turns ...

Naomi Shah won the 2011 Google Science Fair in the age 15-16 category.

Talks from scientists, musicians, innovators, activists -- all under the age of 20. Watch these amazing wunderkinds.

About this event: Vladimir Putin's illegal war in Ukraine has raised the spectre of whether and how nuclear weapons might be deployed. While the use of nuclear weapons is widely considered to be "unthinkable," and may lead to unpredictable escalation and even mutually assured destruction, we are now faced with the possibility that new, smaller tactical weapons ma...

Deborah Rhodes is an expert at managing breast-cancer risk. The director of the Mayo Clinic’s Executive Health Program is now testing a gamma camera that can see tumors that get missed by mammography.

Scilla Elworthy founded Oxford Research Group in 1982, to promote effective dialogue between nuclear weapons policy-makers and their opponents.

William Ury is a mediator, writer and speaker, working with conflicts ranging from family feuds to boardroom battles to ethnic wars. He's the author of "Getting to Yes."

BCG's Antoine Gourévitch is a senior partner in the firm's Paris office.

John F. Kerry is the United States's first Special Presidential Envoy for Climate.

Dan Berkenstock and his team at Skybox Imaging are rethinking how to take photographs from space.

As computer access expands, Mikko Hypponen asks: What's the next killer virus, and will the world be able to cope with it? And also: How can we protect digital privacy in the age of government surveillance?