Some of the world’s biggest aviation companies, including Boeing and Airbus, are working on the next generation of planes. One big goal? Making air travel greener by cutting its carbon footprint. So, they're ditching traditional jet fuel in favor of other options, like hydrogen fuel cells, electricity from batteries, and “sustainable aviation fuels." That could mean major changes in how we fly and how much we pay to get to our destinations. WSJ’s Danny Lewis talks with Boeing, Airbus and others about how this push to change how planes are powered could shape the future of flight. Further read ..read more

Imagine getting from your home to the airport and skipping all the traffic on the road in a flying taxi. They once were the domain of science fiction and Saturday morning cartoons, but a growing number of companies are working to make taxis in the sky a reality, and the FAA is coming up with regulations to keep them safe. In this conversation from the Future of Everything festival in May, WSJ’s Alex Ossola speaks to Billy Nolen, the acting FAA administrator, about the business and technology behind air-taxi travel and the challenges facing regulators. Further reading:  FAA Plans New Sky ..read more

NASA’s Perseverance rover is currently collecting samples on the surface of Mars, and some of them will be coming to Earth—that is, if all goes well. NASA has a complex plan to bring bits of the Red Planet here, arriving in 2033, so scientists can study them to answer some burning questions. What’s the planet’s history? What is its dust like? And, are there any signs that life may have existed there? WSJ’s Alex Ossola speaks to Lindsay Hays, an astrobiologist at NASA and deputy lead scientist for the Mars Sample Return mission, about how this mission could help us better understand the history ..read more

At the start of the Covid-19 pandemic, epidemiologists looked to our sewers to help figure out the scale of the virus’ spread. It worked, giving some public health officials a heads-up before Covid surges. Now, researchers are taking the lessons from that pandemic, and working to put the wastewater from bathing, toilets, laundry machines and dishwashers to use in monitoring the spread of other diseases. WSJ’s Danny Lewis speaks with environmental microbiologist, engineer and epidemiologist Marlene Wolfe about why it’s so important to look at wastewater if we want to stop the next pandemic.&nbs ..read more

Severe droughts in the American South and West are raising new questions about how to ensure millions of people have access to clean, safe water. That’s why several local water systems, including one that provides water to 19 million people in Southern California, are looking to a method of water recycling that brings treated wastewater back into the system. It’s called “direct potable reuse,” but many people have dubbed it “toilet to tap.” Can it succeed despite the ick factor? WSJ’s Alex Ossola visited Los Angeles to find out just how it would work, and how the public is reacting. Further re ..read more

Our sense of smell is deeply linked to our emotions, due to the connections between the tissue structures that identify odors and the parts of the brain that govern our memories and feelings. But what if those smells are linked to traumatic memories? Researchers are finding success using a combination of artificial scents and virtual reality to treat people with severe cases of trauma. WSJ’s Danny Lewis examines how new innovations could make this therapy more accessible. Further reading:  High-Tech Smell Sensors Aim to Sniff Out Disease, Explosives—and Even Moods - WSJ  The Metaver ..read more

It may seem like science fiction, but over the past decade scientists have been using stem cells to grow so-called “mini brains.” Researchers prefer the term brain organoids, a collection of human cells in a petri dish that mimic the structure and cell types of our own brains. They’ve been used to study diseases like cancer and Parkinson’s, and evaluate potential treatments, but now the research is becoming more sophisticated, and that’s raising big concerns. Could they become conscious? Should we even be experimenting on our own cells? WSJ’s Alex Ossola explores the advantages, and potential ..read more

High-speed internet is something many of us take for granted. But the FCC says millions of Americans lack access to broadband service. That includes many people who live in the northernmost parts of Alaska, where satellite internet has long been the only option. That’s changing, though, as melting sea ice is leading a rush of companies to step in and start laying new undersea cables. WSJ Pro reporter Isabelle Bousquette visited parts of the Arctic where high-speed internet has made it easier to learn and even saved lives. She speaks with WSJ’s Danny Lewis about the huge educational, medical an ..read more

When the game clock starts, football players aren’t just heading out with their pads and a game plan. Technology like helmet sensors that track the hits players take are becoming more common, especially for young players. They’re being used to figure out when a player might be at risk for a concussion or another brain injury. The data collected is helping researchers and doctors learn more about what happens to the brain over time. But could these innovations and research shape how we play football? Further reading:  Tua Tagovailoa Is in the NFL’s Concussion Protocols Again - WSJ  S ..read more

A growing body of research suggests that the gut microbiome, the bacteria and other organisms that live in the gut, is linked to our mental health. But what if doctors could act on that information to treat mental illness by changing the gut microbiome? WSJ’s Alex Ossola talks to some of the top researchers in the emerging field of psychobiotics to explore how changing what’s in the gut could lead to future psychiatric treatments.  Help is available: Reach the 988 Suicide & Crisis Lifeline (formerly known as the National Suicide Prevention Lifeline) by dialing or texting 988. Furthe ..read more