The inner workings of large AI systems remain largely opaque, raising significant safety and trust issues. Researchers have now developed a technique to extract and manipulate the internal concepts ...

"Aurora’s self-driving trucks can now travel nonstop on a 1,000-mile route between Fort Worth and Phoenix—exceeding what a human driver can legally accomplish. The distance, and the time it takes to ...

Elon Musk has long said settling Mars is SpaceX’s raison d'être, but the world’s richest man has now pivoted his attention to the moon. The company is targeting an uncrewed lunar landing in March 2027 ...

Claudia López Lloreda is a senior contributor at Undark and a freelance science journalist covering life sciences, health care, and medicine. Sign up to receive top stories about groundbreaking ...

Robotaxis have long promised cheaper trips and shorter wait times, but so far, providers have struggled to match traditional platforms. New pricing and timing data from San Francisco shows that ...

DNA stores the body’s operating playbook. Some genes encode proteins. Other sections change a cell’s behavior by regulating which genes are turned on or off. For yet others, the dark matter of the ...

Time feels like the most basic feature of reality. Seconds tick, days pass, and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and ...

How do you translate a Roman inscription found on a tombstone? How many pairs of tendons are supported by one bone in hummingbirds? Here is a chemical reaction that requires three steps: What are they ...

Here’s a party trick: Try opening a bottle of water using your thumb and pointer finger while holding it without spilling. It sounds simple, but the feat requires strength, dexterity, and coordination ...

Laura Oliveira fell in love with swimming at 70. She won her first competition three decades later. Longevity runs in her family. Her aunt Geny lived to 110. Her two sisters thrived and were mentally ...

Have you ever had the experience of rereading a sentence multiple times only to realize you still don’t understand it? As taught to scores of incoming college freshmen, when you realize you’re ...

“As the hype dies down, Moltbook looks less like a window onto the future and more like a mirror held up to our own obsessions with AI today. It also shows us just how far we still are from anything ...