Military vehicles carry an earlier version of China’s hypersonic missile during a 2019 parade.
AP Photo/Ng Han Guan
China’s newest hypersonic missile, the DF-27, could sideline US aircraft carrier groups in the Pacific, while missiles in the works in China, Russia and the US threaten global security.
Cloud seeding can increase rainfall and reduce hail damage to crops, but its use is limited.
John Finney Photography/Moment via Getty Images
Cloud seeding – spraying materials into clouds to increase precipitation – has been around for nearly 80 years. But only recently have scientists been able to measure how effective it really is.
Garnering lots of tweets can contribute to a bank’s woes.
SOPA Images/LightRocket via Getty Images
Social media provides both a forum for communication and a public signal about what a bank’s customers believe. That means Twitter can facilitate coordination in real time.
Who’s in control?
John Lund/Stone via Getty Images
AI is poised to reshape parts of US culture and society. Have tech developments raced ahead of our ability to understand the consequences?
What does generative AI mean for the human need to create, work and seek the truth?
Krerksak Woraphoomi/iStock via Getty Images
Generative AI can seem like magic, which makes it both enticing and frightening. Scholars are helping society come to grips with the potential benefits and harms.
You don’t have to see the future to know that AI has ethical baggage.
Wang Yukun/Moment via Getty Images
Generative AI is designed to produce the unforeseen, but that doesn’t mean developers can’t predict the types of social consequences it may cause.
Sprinklers water a lettuce field in Holtville, California with Colorado River water.
Sandy Huffaker/AFP via Getty Images
Two decades of drought have reduced the river’s flow by one-third compared to historical averages. The Biden administration is considering mandatory cuts to some states’ water allocations.
Amitai Gross reads from the Haggadah while preparing to dip parsley into salt water as part of the Passover meal, called the Seder.
Marty Caivano/Digital First Media/Boulder Daily Camera via Getty Images
The Passover Seder has tradition and remembrance at its core, but has also evolved throughout the centuries in Jewish communities around the world.
Horses are an active part of life for the Lakota and many other Plains nations today.
Jacquelyn Córdova/Northern Vision Productions
European colonists chronicled their version of how Indigenous peoples lived with horses. New collaborative research adds scientific detail to Indigenous narratives that tell a different story.
Bird flu is transmitted mainly by wild birds, like these snow geese in Ruthsberg, Md., in January 2023.
Photo by JIM WATSON/AFP via Getty Images
Avian influenza viruses have evolved to infect birds, but the current H5N1 outbreak is also infecting a wide range of mammals. This suggests that it could mutate into forms that threaten humans.
A series of atmospheric rivers in early 2023 covered the Sierra Nevada in snow.
Mario Tama/Getty Images
Rain falling on deep snow from a series of atmospheric rivers has heightened California’s flood risk. It’s a growing problem as the planet warms.
School shootings are tragic, but parents, students and school staff can take steps to prevent them, researchers report.
AP Photo/Rebecca Blackwell
Much of the public discussion on preventing school shootings is about whether and how to limit people’s access to firearms. But other strategies can reduce the risk for violence.
ChatGPT has the fastest-growing user base of any technology in history.
Dmytro Varavin/iStock via Getty Images
New technologies are often surrounded by hopeful messages that they will alleviate poverty and bring about positive social change. History shows these assumptions are often misplaced.
Video footage of the fatal beating of Tyre Nichols may be key to any criminal trial.
City of Memphis via AP
Jurors can perceive events in a video in different ways – one of which depends on how the evidence is presented in court, a media scholar explains.
Un globo de vigilancia chino en espacio aéreo estadounidense antes de ser derribado por el ejército estadounidense.
Peter Zay/Anadolu Agency via Getty Images
Un globo chino violó el espacio aéreo estadounidense, un incidente lo bastante grave como para impedir una reunión diplomática de alto nivel entre Estados Unidos y Pekín. Sin embargo, el globo en sí no representaba una gran amenaza.
A Chinese surveillance balloon in U.S. airspace before it was shot down by the U.S. military.
Peter Zay/Anadolu Agency via Getty Images
A Chinese high-altitude balloon violated U.S. airspace, a serious enough breach to nix a high-level diplomatic meeting in Beijing. The balloon itself, however, was not much of a threat.
The fire risk goes beyond rising temperatures and dry conditions.
Samuel Corum / AFP via Getty Images
More homes are burning in wildfires in nearly every Western state. The reason? Humans.
The typical car is parked 95% of the time.
Nastco/iStock via Getty Images
As many cities grapple with the housing crisis, some places are rewriting regulations and finding creative ways to repurpose these hulking masses of concrete that suck up valuable real estate.
People attend a candlelight vigil in memory of Tyre Nichols in Memphis, Tenn., on Jan. 26, 2023.
Scott Olson/Getty Images
The death of a Black motorist after a beating by five Black Memphis police officers has triggered national outrage over police brutality and systemic racism with the U.S. criminal justice system.
The giant bird Genyornis went extinct in Australia around 50,000 years ago.
A puzzle over the identity of an extinct bird that laid eggs across Australia has been solved.