Stars don't usually evolve fast enough for humans to notice them change within one lifetime. Even a hundred lifetimes won't do--astronomical processes are just too slow. But not always. There are some phases of stellar evolution that happen quickly, and when they do, they can be tracked. A new paper posted to ArXiv last week uses astronomical observations found in ancient Roman texts, medieval astronomical logs, and manuscripts from China's Han Dynasty to trace the recent evolution of several br...
Stars don't usually evolve fast enough for humans to notice them change within one lifetime. Even a hundred lifetimes won't do--astronomical processes are just too slow. But not always. There are some phases of stellar evolution that happen quickly, and when they do, they can be tracked. A new paper posted to ArXiv last week uses astronomical observations found in ancient Roman texts, medieval astronomical logs, and manuscripts from China's Han Dynasty to trace the recent evolution of several br...
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