Ah, the tempestuousness of youth. Studies of a group of young sunlike stars in the Orion nebula suggest that these infants throw tantrums–flares accompanied by intense X rays–more frequently than some researchers had thought. If our own sun was as active in its youth, then it could be the source of isotopes, such as aluminum-26, calcium-41, and beryllium-10, commonly found in meteorites.
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