PBS NewsHour - Science

For thousands of years, humans have tried to avoid growing old. Billions are spent every year on potions and procedures to make us look younger, feel younger and think younger. It's a hugely profitable, but ultimately fruitless hunt. But science has started to zero in on some proven techniques. Horizons moderator William Brangham explores that with Dr. Eric Topol and Dr. Sandra Weintraub. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

As the impact from the war in Iran grinds on, Americans are feeling it at the gas station. Evangelists for clean energy say the oil shock is an opportunity to embrace the transition to renewable power like wind and solar. With energy prices on the rise, Horizons moderator William Brangham explores if Americans are open to a new way of powering our world with Bill McKibben and Jigar Shah. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Americans are anxious about their jobs and whether artificial intelligence is coming for them. Some prominent voices call it catastrophic, others say it's hype. The data, so far, is somewhere in between and deeply contested. Geoff Bennett spoke with Josh Tyrangiel about his recent story for The Atlantic, "America Isn't Ready for What AI Will Do to Jobs." PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

The four-astronaut crew of NASA's Artemis II flew to the far side of the moon and set a record for the farthest distance from Earth traveled by any human. Monday's seven-hour lunar flyby was the most anticipated part of the mission. Amna Nawaz discussed the historic achievement with science correspondent Miles O'Brien. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

We tend to think of cancer as a disease that mainly affects older people, but an increasing number of diagnoses are happening amongst the young. What is behind this alarming rise? And can anything be done to prevent it? Horizons moderator William Brangham explores those questions and more with Laura Behnke, Dr. Veda Giri and Dr. Shanthi Sivendran. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

A day after liftoff, Artemis II is now well on its way. Four astronauts are on a ten-day voyage around the moon and back, traveling deeper into space than any human has ever before. For more about what's happening now and what comes next, Amna Nawaz spoke with science correspondent Miles O'Brien. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

For the first time in more than 50 years, the United States is sending astronauts back toward the moon. NASA launched Artemis II from the Kennedy Space Center in Florida, sending a crew of four astronauts on a 10-day voyage. If all goes as planned, they will travel farther into space than any humans before them. Miles O'Brien was there for the launch and joined Amna Nawaz to discuss the mission. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

The Trump administration has rolled back support for many forms of clean energy. One exception is nuclear power. The president wants to quadruple U.S. nuclear capacity by 2050, and a new generation of advanced reactors in development could signal the dawn of a new nuclear age. Paul Solman reports for our series, Tipping Point. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

A massive heat dome has been spreading across much of the United States this month, with temperatures reaching historic highs. But it's not an isolated spike. In recent weeks, the country has grappled with a series of extreme weather events. Ali Rogin spoke with Bernadette Woods Placky of Climate Central for our series, Tipping Point. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Nearly 60 years after NASA sent the first humans to ever land on our moon, the U.S. is going back with a series of increasingly difficult missions. Horizons moderator William Brangham explores the Artemis program and what new discoveries NASA is hoping to find with PBS News science correspondent Miles O'Brien, Casey Dreier of The Planetary Society and retired astronaut and engineer Leroy Chiao. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Once a relatively obscure class of drugs used for people with diabetes, GLP-1s have now shown an impressive ability to treat obesity, which affects over 100 million Americans. Horizons moderator William Brangham explores the great promise of the drugs and the potential concerns surrounding them with Dr. Jody Dushay, Dr. Rekha B. Kumar, Dr. Anna Lembke and Dr. Ziyad Al-Aly. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

The war in Iran has cast a spotlight again on the dependence on fossil fuels. The electric grid is under growing demand, but the Trump administration has worked to roll back subsidies and incentives for some renewable energies. A new industry report finds that solar panel installations dropped by 14% this past year. Science Correspondent Miles O'Brien reports for our series, Tipping Point. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

On the latest episode of our video podcast, "Settle In," Amna Nawaz spoke to pioneering digital forensic expert Hany Farid. They discussed why disinformation spreads online, how to find reliable sources of information and why he's still hopeful about our digital future. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

All of us experience consciousness. We have thoughts and feelings, and we're aware of those acting upon us. It's the hidden internal lens through which we view the world, but why do we have this power, and are we the only ones that do? Horizons moderator William Brangham explores this defining aspect of being human with Michael Pollan, author of "A World Appears: A Journey into Consciousness." PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

PBS News Student Reporting Labs, our journalism training program, takes us to a family farm in Upper Marlborough, Maryland, to meet Cameron Oglesby. They bring you the story of her family's struggle to hold onto their land, which inspired her to want to tell stories of environmental justice. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Pioneering digital forensic expert Hany Farid talks with Amna Nawaz about the dangers of artificial intelligence being deployed irresponsibly, why social media companies prioritize engagement over authenticity and how to sift through what's real and what's not. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

For some, artificial intelligence tools answer questions and make life more efficient. But for others, AI has become a form of companionship – a virtual friend, a therapist, even a romantic partner. Is AI a cure for loneliness? Or is this a symptom of something gone very wrong? Horizons moderator William Brangham explores AI relationships with Sherry Turkle, Justin Gregg and Nick Thompson. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

The clash between Anthropic and the U.S. government escalated with President Trump ordering every federal agency to stop using any of the AI company's products. It came after Anthropic wanted to limit how the Pentagon used one of its AI tools. William Brangham discussed more with Michael Horowitz. He previously worked in the Pentagon, where he wrote the policy on AI weapon systems. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

In a zoo outside Tokyo, one monkey has pulled heartstrings around the world after forming an unexpected friendship. Stephanie Sy reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

This will come as a surprise to no one, but exercise is really good for us. But why it works and how it works are far less understood. Horizons moderator William Brangham explores that with Stanford University's Euan Ashley. He's a professor of genomics and cardiovascular medicine and is part of a team trying to understand, at the very molecular level, how exercise changes our bodies, and why. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

As Trump pulls back from regulations on climate change, many scientists remain worried about the warming of the oceans, melting glaciers and sea level rise. Science correspondent Miles O'Brien has been reporting from Antarctica on a mission to understand what's happening there. In his last report from the Thwaites Glacier, he looks at other key research projects that have been part of that trip. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Americans are expected to place a record-breaking $1.7 billion in legal bets on the Super Bowl. With a potential casino inside every phone and computer, a rising chorus of experts who study problem gambling and addiction are ringing the alarm. Horizons moderator William Brangham explores this tidal shift in American culture with journalist Danny Funt and addiction psychiatrist Dr. Timothy Fong. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

If you've been following Miles O'Brien's reports from Antarctica, you know he's with an international group of researchers trying to measure what's happening to the rapidly melting Thwaites Glacier. Their work has been trying to capture information in ways that have never been done before. O'Brien has an update on how all that turned out, for our Tipping Point series. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

What do non-stick pans, firefighting foam and many of our couches, carpets and cosmetics have in common? They're all made with PFAS. The so-called forever chemicals helped spur innovation, but they're also insidious to human health. Horizons moderator William Brangham explores these chemicals and how we can protect ourselves with investigative journalist Mariah Blake and scientist Laurel Schaider. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Freediver and ocean conservationist Hanli Prinsloo has spent her life helping others connect with the ocean and understand our responsibility to care for it. She shares her Brief But Spectacular take on protecting what we love. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

It's been 40 years since the space shuttle Challenger exploded just after takeoff. Geoff Bennett speaks with science correspondent Miles O'Brien, who covered the aftermath of the disaster, about how it affected the U.S. space program. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Ice in the Arctic and Antarctica plays a critical role in maintaining life on Earth, and it is melting faster than previously thought. This is threatening our planet with potentially massive sea-level rise, weather disruptions and further global warming. Horizons moderator William Brangham explores the fate of ice on Earth with science correspondent Miles O'Brien and glaciologist Erin Pettit. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Tressie McMillan Cottom says the second Trump administration has revealed uncomfortable truths about power in America. She talks with Geoff Bennett about trust in institutions and how to keep your sense of purpose in an onslaught of news. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Scientists are worried about the melting of Antarctica's ice sheets and what it could mean for sea levels. There's a two-month-long journey underway to conduct research that will better explain what's happening. But it's a journey that provides no guarantees that researchers will even be able to get the data they want. Science correspondent Miles O'Brien reports for our series, Tipping Point. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Ultra-processed foods make up more than half the average American diet and they're linked to rising rates of obesity and heart disease. Health Secretary Robert F. Kennedy Jr. says the Trump Administration has a solution. But will this plan really "Make America Healthy Again?" Horizons moderator William Brangham explores the American food crisis with Marion Nestle, Ashley Gearhardt and Cindy Leung. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

So you want to change a habit — or maybe start something new. Pulitzer Prize-winning journalist and author Charles Duhigg's book, "The Power of Habit," explores how habits are made, and the cues and rewards that shape our behavior. He spoke with Amna Nawaz about how to make habits that actually stick as well as his most recent book, "Supercommunicators." PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Monarch butterflies make one of the most extraordinary migrations in the natural world, often traveling thousands of miles across North America. Now, scientists are using new tracking technology to get a greater understanding of those journeys. Ali Rogin speaks with Dan Fagin, a Pulitzer Prize-winning journalist who teaches science journalism at New York University, to learn more. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Some call it the 'Doomsday Glacier,' a vast expanse of Antarctic ice roughly the size of Florida. As temperatures rise, the Thwaites Glacier is melting fast and threatens to raise global sea levels. That's why a team of nearly 40 researchers is embarking on a two-month journey to study it. Science correspondent Miles O'Brien is with the expedition and reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

The private space economy is growing significantly and the year ahead could be a big one. The first private space station is expected to launch next spring, new commercial space flights will be offered and SpaceX is considering a public stock offering. Science correspondent Miles O'Brien reports on a space start-up in New Zealand catching some attention of its own. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

This year, the development and spending around artificial intelligence has been perhaps the most significant business and economic story. AI spending is driving one of the most explosive periods for the tech industry and playing a big role in overall economic growth. But there are very real questions about the boom. Geoff Bennett discussed the potential bubble with Cade Metz of The New York Times. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

In movies and literature, a wolf's haunting howl can signify danger or untamed nature. In real life, researchers in Yellowstone National Park are analyzing those howls with cutting-edge AI technology to better monitor and track wolves. Matt Standal of PBS Montana reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

The Trump administration says it plans to dismantle the National Center for Atmospheric Research in Colorado, which is the nation's premier atmospheric science center. The center was founded in 1960 and has facilitated generations of breakthroughs in climate and weather science. William Brangham discussed the move with climate scientist Kim Cobb and meteorologist Matthew Cappucci. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

The Trump administration announced an immediate pause on the leases for five large-scale offshore wind farms off the East Coast. The Interior Department provided few details, but said the Pentagon believed the turbines could obscure and confuse radar signals. It's the latest move by the White House taking aim at wind power. Science correspondent Miles O'Brien has been tracking these projects. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

President Trump has signed an executive order that would block states from enforcing laws they pass to regulate A.I., or artificial intelligence.The directive marks a big win for tech giants but will likely be challenged in the courts. Jacob Ward, founder of The Rip Current, joins Geoff Bennett to help break down the concerns and the arguments around all of this. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

For years, solar power at home was mostly limited to people who owned their rooftops and could afford the steep upfront costs. But now, a new generation of small, affordable systems — often called "plug-in" solar — are making clean energy more accessible. Already widespread in Germany, the movement is gaining momentum in the United States. Laura Klivans of PBS member station KQED reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Last year, 1 in 10 U.S. babies was born before 37 weeks of pregnancy, which is considered preterm. That's one of the highest premature birth rates among developed nations, according to the March of Dimes. We hear from parents of preterm babies about their experiences, and Ali Rogin speaks with an entrepreneur who's using AI to help doctors predict when preterm births are likely. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Hundreds of miles from the U.N. conference on climate change that wrapped this weekend in Belém, Brazil, scientists are conducting a first-of-its-kind experiment that could help future policymakers address the issue. John Yang reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy