Researchers used the European XFEL to create X-ray flashes that were not only extremely short but also reached record intensity for this type of pulse. The researchers focused the X-rays to an area roughly 100,000 times smaller than the cross section of a typical human hair. This concentrated t...

Source: [Phys.org](https://phys.org/news/2026-10-world-intensity-attosecond-hard-ray.html)

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