How so? In one recent paper, we used random variation between different training runs to find correlations between models’ internal structure and their generalization behavior. If structure and behavior are correlated across a bunch of random initializations when you control for everything else, it’s likely that they’re actually linked. You can make a much stronger… Continue reading To Understand AI, Watch How It Evolves
Teens Are Using Chatbots as Therapists. That’s Alarming
On any given night, countless teenagers confide in artificial intelligence chatbots—sharing their loneliness, anxiety, and despair with a digital companion who is always there and never judgmental. A survey by Common Sense Media published in July found that 72 percent (PDF) of American teenagers said they had used A.I. chatbots as companions. Nearly one-eighth had… Continue reading Teens Are Using Chatbots as Therapists. That’s Alarming
How Do You Weigh a Black Hole?
September 18, 2025 5 min read How Do You Weigh a Black Hole? Gauging the mass of a black hole is tricky, but astronomers have devised multiple methods to measure the heft of these galactic gluttons By Phil Plait edited by Lee Billings This jagged jumble of pixels may look like a rainbow-colored thunderbolt, but… Continue reading How Do You Weigh a Black Hole?
Five Questions: Melanie Zaber on Making It in the Middle Class
Melanie Zaber studies everything from the rise of artificial intelligence to apprenticeship programs in rural Appalachia. Her goal is straightforward: to help more Americans find meaningful work and a path to the middle class. Her latest projects have taken her to West Virginia. She’s working with state leaders there to shape new training programs, new… Continue reading Five Questions: Melanie Zaber on Making It in the Middle Class
Want to Get Away? NASA Now Offers More Than 6,000 Alien Worlds to Daydream About
September 19, 2025 3 min read Astronomers’ Exoplanet Haul Tops 6,000 Alien Worlds It’s a crowded galaxy, the latest exoplanet tally shows By Sarah Lewin Frasier edited by Clara Moskowitz Scientists have found thousands of planets outside our solar system, called exoplanets, throughout the galaxy. This artist’s concept shows how they range in size and… Continue reading Want to Get Away? NASA Now Offers More Than 6,000 Alien Worlds to Daydream About
To Meet AI Energy Demands, Start with Maximizing the Power Grid
This commentary was originally published by The National Interest on September 17, 2025. As the United States races to expand its artificial intelligence (AI) capabilities and accelerate electrification, the nation faces a significant challenge: ensuring its aging power grid can keep pace with rapidly escalating energy demands. To respond to this challenge, incentives are needed… Continue reading To Meet AI Energy Demands, Start with Maximizing the Power Grid
The TikTok Trend of Writing in Margins Is Based on Real Neuroscience
September 19, 2025 3 min read Writing in Your Books Is Good for Your Brain—Here’s Why Annotating the margins of books is an important part of deep reading and has a long legacy of merit in both science and literature By Brianne Kane edited by Jeanna Bryner Readers on TikTok and Instagram are making the aesthetics… Continue reading The TikTok Trend of Writing in Margins Is Based on Real Neuroscience
The Missing Piece: Minerals Processing and Deep Sea Mining
This commentary was originally published by Modern Diplomacy on September 18, 2025. The world’s oceans have long been a source of riches that help sustain human civilization. Since antiquity, fishing has played an essential role in global food security, and over 3 billion individuals today derive a significant amount of their animal protein intake from… Continue reading The Missing Piece: Minerals Processing and Deep Sea Mining
Tipsy Bats and Perfect Pasta Win Ig Nobel Prizes for Weird Science Research
Many scientists dream of winning a Nobel Prize, an accolade that brings worldwide recognition, prestige and a place in the pantheon of greatness alongside the likes of Albert Einstein, Marie Curie and Francis Crick. Then there are the other awards — the Ig Nobel prizes, which were devised to highlight research that makes people laugh,… Continue reading Tipsy Bats and Perfect Pasta Win Ig Nobel Prizes for Weird Science Research
Could AI Help Improve How Public Policy Is Made?
The public’s lack of trust in government and the continuing rise of AI are two persistent stories in the news this year. In a March 2025 survey (PDF), trust in the U.S. government was down to 4 percent and only 11 percent said America is a mostly fair society. In another survey less than 40… Continue reading Could AI Help Improve How Public Policy Is Made?