Every year, traffic crashes kill more than one million people, and they’re the leading cause of death for children and young adults. In the US, 100 people a day lose their lives this way, in many cases not on highways but on rural and local streets. “Traffic deaths are a leading cause of preventable death,…
The rise of the lithium-ion battery, which powers everything from the smallest personal electronics to gargantuan energy storage systems, has been nothing short of revolutionary. But as anyone who’s boarded a plane in the last decade could tell you, storing and pumping out energy by moving charged lithium ions through a liquid electrolyte soup has…

Scrubbing Earth of per- and polyfluoroalkyl substances—a.k.a. PFAS or forever chemicals—could eliminate a list of woes for people and planet. Used for decades in everything from nonstick pans to firefighting foams, PFAS have been linked to increased risks of fertility challenges, developmental delays, cancer, and reduced immune response. They are known for a strong bond…

Humans are far from the only species with a gift for gab, and our furry, feathered, and finned friends could have a lot to tell us. Decoding how animals communicate with one another could offer a window into the inner lives of other species and help humans realize that “animals are sentient creatures who think,…

We all know exercise is good for us. It builds muscle, strengthens bones, lowers blood pressure, and boosts mood. By deciphering how movement benefits the body, researchers hope to develop medicines that can offer some of the same perks—without the workout. The idea isn’t to replace exercise but to bring its upsides to people who…

Just before the Artemis II crew began its historic slingshot around the moon this past April, NASA announced plans to build Space Reactor-1 Freedom. SR-1, the first-ever nuclear-reactor-powered interplanetary spacecraft, is meant to fly an uncrewed mission to Mars by the end of 2028, arriving in 2029. A successful mission would herald a new era…

I’d wager everyone has a rehearsed response to what’s absolutely one of the world’s worst interview questions: “What’s your biggest weakness?” Whenever I’ve gotten it, I take a slow—even pensive—breath and rattle off my line: “I say no to myself too much.” I won’t lie. It’s a bit shameless—a definite humblebrag. I’m a systems thinker:…
Shared from Nature Bot.

Strokes leave 5 million people with long-term impairments each year, and a growing shortage of physical therapists makes it hard for them to get the care they need. A new approach tries to solve that problem by combining artificial intelligence and human therapy. Johannes Lachner, a former MIT postdoc who is now an assistant professor…

Tomás Villalón Jr. ’14 was raised in San Antonio, Texas, but vividly remembers smog hanging over the city his family came from—Monterrey, Mexico, a steel manufacturing and metal fabrication hub. Even as a child, he realized it was problematic to breathe that air. “I’m motivated because I’ve seen what metal-making does,” says Villalón, who majored…

Alissa Totman ’13 was a sophomore when she joined MIT BrainTrust, a student-run organization that connects Institute undergraduates and people with brain injuries for support and socializing. “That group was a great way to learn about the human experience of what people go through when they experience a brain injury,” she says. And it laid…

Growing up on a small farm in Nebraska, Megan Donahue ’85 discovered the wider world by reading her way through her local library. Today, she is learning how the wider universe works by studying galaxy clusters. Donahue discovered her passion for physics in that library at age 12 and started her path into astronomy thanks…
These are images of quizzes I took in 3.091, Introduction to Solid-State Chemistry, in the fall of 1980. One is my very first exam at MIT, and getting 49 out of 100 was a soul-crushing experience. I can still picture the TA, Leszek Pawlowicz, PhD ’87, returning my paper. He had a big smile on…

In corporate America, Stanley Anderson ’79 says, executives often assume that their peers grew up in privileged circumstances. He did not. “I spent my early years trying not to get recruited into gangs, getting shot at, watching my friends get murdered, and thinking that if I don’t leave, I will die,” says Anderson, who was…
A high-fat, low-carbohydrate diet can help some people lose weight, and some research has shown that it may protect against colon cancer. But a new study suggests that such a ketogenic diet may also increase the risk of cancer in the small intestine. This type of diet forces the body to burn fatty acids instead…

The average American throws out around 81 pounds of clothing each year, and there are few options for recycling it. MIT engineers hope to cut down on that textile waste with a new type of yarn. The thermoplastic yarn mimics the properties of conventional elastic yarns, which typically combine spandex with polyester or nylon. Those…

When Tristan Brown, an associate professor of history at MIT, first examined a Chinese tea chest label displayed at Old South Meeting House, he had no reason to doubt its story. Descendants of the Boston blacksmith Thomas Wells had donated the label in 1987, saying it had been recovered after colonial protesters threw tea into…

Given that water is 1,000 times denser than air, moving through those two mediums requires very different mechanics—or so one might assume. Yet birds like gulls and puffins can plunge into the sea, swim underwater, and leap back into the air to fly away. And now engineers at MIT and EPFL in Lausanne, Switzerland, have…

Large language models are set to go lunar. A computer capable of running AI software is one of the payloads aboard Astrolab’s FLIP lunar rover, which is slated to head to Earth’s celestial companion as early as November 2026. The 480-kilogram FLIP rover, short for “FLEX Lunar Innovation Platform,” is the first in a series…

