Astronomers discovered ancient Egyptian observations of a variable star:
"The study of the “Demon star”, Algol, made by a research group of the University of Helsinki, Finland, has received both scientific and public attention. The period of the brightness variation of this eclipsing binary star has been connected to good prognoses three millennia ago. This result has raised a lot of discussion and the news has spread widely in the Internet."
'via Blog this'
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