Glimpses of the "gallium anomaly" were first seen in the mid-1990s, but it was first clearly discovered and stated in 2007 by neutrino physicist Carlo Giunti of Italy. The problem is simple to state but potentially very important: about 20% fewer electron neutrinos were seen to be captured by ga...

Source: [Phys.org](https://phys.org/news/2026-10-gallium-anomaly-neutrino-shortfall-invoking.html)

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