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Tiny crystals in meteorites were witness to the Sun’s unruly behavior in its earliest years. The Sun sends a lot more than Sunshine and rainbows our way. High-energy particles capable of messing with ...

Artist's illustration of the dusty disk of the early Solar System with an inset microscope image of a hibonite crystal. (Credit: Field Museum, University of Chicago, NASA, ESA, and E. Feild ...