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Researchers have designed a new type of gravitational wave detector that operates in the milli-Hertz range, a region untouched by current observatories. Built with optical resonators and atomic clocks, the compact detectors can fit on a lab table yet probe signals from exotic binaries and ancient cosmic events. Unlike LIGO, they’re relatively immune to seismic noise and could start working long before space missions like LISA launch.

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A powerful new AI tool called Diag2Diag is revolutionizing fusion research by filling in missing plasma data with synthetic yet highly detailed information. Developed by Princeton scientists and international collaborators, this system uses sensor input to predict readings other diagnostics can’t capture, especially in the crucial plasma edge region where stability determines performance. By reducing reliance on bulky hardware, it promises to make future fusion reactors more compact, affordable, and reliable.

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A team of physicists has discovered that virtual charges, which exist only during brief interactions with light, play a critical role in ultrafast material responses. Using attosecond pulses on diamonds, they showed these hidden carriers significantly influence optical behavior. The findings could accelerate the development of petahertz-speed devices, unlocking a new era of ultrafast electronics.

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