29/05/2026

Engineering

Underground acoustic signals reveal hidden tunnels

For decades, engineers have searched for underground tunnels by sending signals from the surface downward—an approach that can miss what lies below. By reversing that approach, researchers at the Department of Energy's (DOE) ...

Engineering

NASA's X-59 prepares for first supersonic flight

NASA's X-59 quiet supersonic research aircraft is preparing for some of its most significant flights yet. The X-plane is about to begin a new block of test flights that will include its first time flying faster than the speed ...

Security

Bluesky accounts hijacked in pro-Russia propaganda campaign

A Russian influence campaign hijacked hundreds of Bluesky accounts—many belonging to influential Americans—to spread propaganda, researchers said, in a striking disinformation tactic that weaponized authentic identities rather ...

Machine learning & AI

Musk defends AI ambitions as IPO reveals trouble

Elon Musk insists that his artificial intelligence venture xAI remains a serious competitor, pushing back against mounting doubts after revelations that the supercomputing facilities built to power his own AI models are being ...

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