A federal judge on Tuesday sentenced former Massachusetts Air National Guardsman Jack Teixeira to 15 years in prison for stealing classified information and sharing it online.

President-elect Donald Trump announced his choice Tuesday for CIA Director, tapping his former intelligence chief John Ratcliffe, who he called a "warrior of truth."

The U.S. Army has awarded a $435 million contract for Repkon USA to build the nation's only TNT production facility in a rural community in Graham, Ky.

President-elect Donald Trump on Monday announced plans to nominate South Dakota Gov. Kristi Noem to head the Department of Homeland Security of his incoming administration.

President-elect Donald Trump announced Tuesday that Elon Musk and Vivek Ramaswamy will lead his administration's new Department of Government Efficiency, or DOGE, to end "government waste" and "slash excess regulations."

President-elect Donald Trump on Tuesday night announced his nomination of Fox News host and Army veteran Pete Hegseth to head the Department of Defense.

The U.S. military conducted retaliatory airstrikes Tuesday in Syria, targeting facilities of Iran-backed militias following rockets launched at U.S. forces in the Middle Eastern country.

SpaceX on Saturday successfully launched a Falcon 9 rocket carrying a payload of 22 Starlink Internet communications satellite from Cape Canaveral in Florida, marking a state record 73rd orbital rocket launch this year.

NASA has identified nine possible landing sites for its Artemis III mission in September 2026 that will return astronauts to the moon for the first time in more than 50 years, the space agency announced Monday.

NASA said on Tuesday that it will restart its Mentor-Protégé Program for contractors on Friday to expand commercial markets with eligible small businesses.

A new trio of Chinese astronauts reached the Tiangong space station on Wednesday, starting a handover from the current crew already on the orbiting laboratory.

NASA is inviting pubic participation in some virtual activities to watch the SpaceX space station resupply mission scheduled for a Monday night liftoff from NASA's Kennedy Space Center in Florida.

Three Chinese astronauts returned to Earth early Monday after six months in space as part of its Shenzhou-18 mission at its orbiting space station.

The first wood-panel satellite is on a SpaceX flight to the International Space Station, where it will test the durability of wood in space.

NASA engineers fired the engines on the X-59 research aircraft in advance of planned test flights to determine if the aircraft can reduce sonic booms and make supersonic flight over land quieter.

A new technology developed by NASA to predict space weather showed that Hurricane Helene produced "enormous" waves in the Earth's upper atmosphere as it came ashore on Sept. 26, the agency says.

From hugging to hypnosis, these stress relievers are backed by serious research—find out which one works best for you.

Discover why more content isn’t solving your boredom but making it worse.

Your brain could stay sharp for years just by doing these simple activities.

Study of women over 50 suggests how to cut dementia risk by 90 percent.

Does your name suit your face? A study finds it is a kind of self-fulfilling prophecy.

Levels are typically lower in the body through the winter months in northern latitudes.

Not only does hearing this statement lower IQ, it also makes people more aggressive, other studies have shown.

Discover the hidden force shaping your social habits—and why you’re not even aware of it.

Quick decisions could be costing you—find out how to improve them.

A study reveals how six simple food additions could dramatically lower your dementia risk.

You might be seconds away from regaining your focus with this scientifically backed method.

Lose weight with no effort using the ripple effect.

The study found that 68% were vitamin D deficient.

A surprising brain defect could hold the key to schizophrenia’s toughest symptoms.

Children brought up like this tend to be happier as adults.

You think you're informed, but here's why you might not be.

Two things which make you look more intelligent that you can do right now.

Many people overthink persuasion, when it is the most natural approaches that work best.

Your intelligence could influence how much alcohol you consume.

Is people's empathy reducing towards those struggling with mental health issues?

What's the connection between long-term health and financial stability? Neuroscientist Wendy Suzuki and HSBC Global Private Banking and Wealth's CEO Annabel Spring explore the critical components of a good life — and how simple actions like exercise and financial planning can boost your present and future well-being. They discuss how to maximize your sense of joy, transform your anxiety into a force for good and keep your brain healthy over the course of your life. (This content is made possible by HSBC. It however does not necessarily reflect the views of HSBC.)

What we eat is less about what we choose and more about what’s offered to us, says food and climate expert Sarah Lake. Unpacking how governments and companies have driven up meat consumption in the US through extensive marketing, she explains how we could employ these same forces to incentivize plant-based eating — for the sake of the planet, public health and global food security.

Over his decades of farming and ranching, Gabe Brown has noticed a troubling trend: the conventional farming techniques he used were degrading the soil and harming nature. He shares how his family farm turned things around by adopting regenerative agricultural practices — and shows how the wider food system can use these same methods to improve food quality and revitalize the land.

Jordan Johnson and Aidan Carberry, the choreographic duo known as JA Collective, give a performance of dance and visual arts, alternating between abrupt and fluid, tense and dreamlike.

TED Fellow and equity bioengineer Erika Moore investigates how cells controlling inflammation behave differently depending on a patient's background. By focusing on the "who" behind the disease, Moore is uncovering why certain diseases disproportionately affect certain ethnicities, paving the way for more inclusive and effective health care.

"Georgia is not heard or seen in the world, and many don't even know the location of the country," says TED Fellow and photographer Daro Sulakauri. Through her striking photographs of life in the shadows of Russian occupation, she uses her camera to create a living archive of her home country and defend against the erasure of its borders, culture and history.

What if solving poverty, caring for nature and fostering well-being were the ultimate goals of the economy, instead of growth for its own sake? Environmentalist and economist Gaya Herrington proposes a shift in thinking from "never enough" to "enough for each," asking us to contemplate whether the end of exponential growth on a finite planet will come by design — or disaster.

Filmmaker Jon M. Chu has enjoyed an incredible run of success, directing films like "Crazy Rich Asians," "In the Heights" and the highly anticipated adaptation of "Wicked" in theaters soon. But he wasn't always sure he'd make it big. In a wide-ranging conversation, Chu gives his thoughts on nurturing creativity, embracing failure and finding inspiration in your upbringing — as well as some key leadership lessons from his new memoir, "Viewfinder." (This live conversation was hosted by TED's Whitney Pennington Rodgers. Visit ted.com/membership to support TED today and join more exclusive events like this one.)

Is it possible to meet the world's seemingly infinite demand for data storage while also caring for the natural environment? Biomedical researcher Keolu Fox and professional surfer and scientist Cliff Kapono believe that Indigenous knowledge combined with the science of genetics may offer such a solution: using the DNA of plant cells (like those found in sugar cane) as mini data warehouses. Learn more about the incredible potential of this technology — and how it could help foster ecosystem resilience in a high-tech world.

In a universe not unlike ours, a tech-environmentalist group claims to have created an AI that is the direct “voice of the earth,” a computer connected via electrodes to the mycelium network under an ancient forest named S.A.N (Sentient Advocate of Nature). The film imagines what nature thinks of human impact on the planet, as a renowned reporter conducts a world-first interview with S.A.N.

Does AI pose a threat to democracy? Law professor Lawrence Lessig dissects how this emerging technology could influence democratic institutions, warning that we’ve already passed a point (before superintelligence or AGI) that deserves a lot more attention.

Seventy-two percent of the world's population lives under some sort of autocratic rule, says freedom fighter Leopoldo Lopez. In a rousing call to defend democracy worldwide, he shares the story of his imprisonment and exile for leading the movement against Venezuela's authoritarian regime — and shares his vision for uniting across borders to champion freedom and stamp out autocracy.

How can everyday people help foster and protect democracy? Detailing her work fighting for people power as an activist in Madagascar, Ketakandriana Rafitoson discusses how citizen assemblies — meetings where ordinary citizens get educated about democracy — empower communities to protect their rights, debate important civic questions and take action to create a brighter future.

"Intuition helps us see the big picture," says filmmaker and sustainability leader Hrund Gunnsteinsdóttir. Reflecting on her work at the UN, she outlines three ways innsæi (the Icelandic word for "intuition") can help humanity face our greatest existential threats — urging us to use our inner wisdom as a guide for essential change.