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Category: News

Scientists Reconstruct an Exciton’s First 400 Femtoseconds

Physics · Peer reviewed. Ultrafast measurements reconstruct an exciton contracting by about 25%—a new view of light-driven energy transport.

The Universe Is Making Fewer Stars—but It Hasn’t Run Out of Fuel

Astronomy · Peer reviewed. Star formation fell much faster than the universe’s atomic-hydrogen supply, shifting attention from fuel loss to fuel conversion.

LUX-ZEPLIN Recorded One Unexplained Flash—Not Dark Matter Yet

Physics · Preprint. One high-energy nuclear-recoil candidate survived LZ’s analysis, making it intriguing—but far from a dark-matter discovery.

AI Emotional Support Is Linked to Distress in Young People

A cross-sectional study links emotional-support use of generative AI with youth psychological distress, but it cannot establish cause and effect.

Mars Is 200–400°C Hotter Beneath Its Southern Highlands

Sixteen years of spacecraft tracking indicate a much warmer, softer mantle beneath southern Mars, though the temperatures are model-based.

Monkey Feet Complicate a Key Assumption About Human Evolution

Wild sooty mangabeys flex their midfeet by as much as 46 degrees, showing why fossil foot shape alone cannot settle ancient climbing ability.