A Photonic Chip Turned a Tiny Resonance Shift Into Long-Range Motion
A programmable photonic chip reveals how a tiny resonance shift can send light leaping between distant channels—and why precision is the price.
Next frontier
Bluetooth Can Measure Distance—But Your Phone's Tilt Can Fool It
Bluetooth distance estimates can swing with device tilt. A study shows how an onboard motion sensor may correct the error—and where the fix falls short.
A Fixed-Point-Free Map Could Expose a Group’s Hidden Resistance
A map that never settles down may expose a group’s resistance to averaging—and illustrates the promise and cost of mining reusable proof tools.
The AI That Marks a Signal When Reality Breaks Its Forecast
A time-series AI uses its own prediction errors to find meaningful patterns, explain classifications, and flag signals its concepts cannot describe.
AI Research Agents Found a Novelty Trap They Couldn’t Escape
A large test of AI research agents found a stubborn tradeoff: familiar methods performed best, while novel ideas rarely survived first-round scoring.
A Few Memories Take Over an AI Agent’s Long-Term Attention
AI agents revisit a small core of stored memories. A new controller cuts prompt use while preserving the long tail—and exposes a risk.
A Seven-Manifold Shows Positive Curvature Needn’t Bring Symmetry
A seven-dimensional counterexample shows positive curvature need not bring circle symmetry, but the simply connected case remains open.
A One-Dimensional Cesium Gas Could Put Quantum Collapse on Trial
Ultracold cesium gases could test collapse noise and nonlinear quantum mechanics, but atom-loss backgrounds and precision control set the price.
A Small Star’s Giant Planet May Reveal How Big Worlds Form
A faint giant planet and debris disk around a young M dwarf could test competing ideas of planet formation, but its origins remain uncertain.
An 800-Million-Year-Old Asteroid Shower May Have Reached Four Worlds
A model links the Eulalia asteroid breakup to an ancient bombardment of the Moon and inner planets—and shows why proving its effects is hard.
A Virtual Touch Surface Can Turn Soft, Warm, and Cold—Slowly
A haptic prototype changes both softness and temperature, hinting at richer virtual touch while exposing the delays that still limit it.
The Photonic Chip That Can Relearn Its Job Without Being Rebuilt
A programmable lithium-niobate chip learns new ways to route light after fabrication, but speed, power use, and scale remain challenges.
A Chirped Laser Turned Photoelectrons Into a Clock for Ultrafast Motion
A chirped laser maps potassium’s ultrafast spin-orbit motion onto photoelectron energy and angle, offering scan-free snapshots—with resolution limits.
A Planet’s Rings Could Make It Shine—and Mislead Our Telescopes
Exoplanet rings may boost a planet’s reflected light enough to reveal it—but also distort estimates of its size, brightness, and atmosphere.
A Wearable Sends Tiny Waves Into Muscle to Read Its Stiffness
A sticker-sized system uses vibrations traveling through muscle to estimate resting stiffness, with promise for wearables and hurdles to clear.
The AI Saw a Yellow Banana—Then a Sentence Made It Brown
A yellow banana becomes brown in an AI’s answer. Researchers trace the reversal and test a selective way to restore visual evidence.
A Planet’s Helium Headwind Could Reveal Its Magnetic Ties
A helium outflow detected around TOI-3884b may reveal how stellar radiation and magnetic fields reshape escaping planetary atmospheres.
The Robot That Builds a Tiny Toy World Before Touching the Real One
ZeroBot builds a virtual object from one view, then trains a robot to handle it in minutes—while revealing the limits of imagined geometry.
Meteorites May Preserve a Cosmic-Ray Map of the Sun’s Birth
Meteorite beryllium may preserve a cosmic-ray clue to the Sun’s birth, but uncertain particle transport keeps its galactic birthplace unsettled.
A Bias Hidden in Random Numbers Could Ride Into AI Training
A study finds that AI models can pass an animal preference through random-number training data, revealing a hard-to-spot auditing challenge.