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"On the fifth day of May, the evening moon shines brightly, and then its light fades away," the unknown scribe wrote in an Anglo Saxon manuscript called the Peterborough chronicle. "As the night came, it went out completely, and no light or anything could be seen. It lasted almost until dawn, and then there was a bright light. "
Clouds are not the reason for the disappearance of the moon, otherwise the scribe will not continue to describe how the stars are bright and twinkling, but the shadow of the moon cannot be found in the field of vision. There was no eclipse, and the earth's shadow did not cover the moon - if so, the observer would see the moon turn into a bronze "blood moon," rather than disappear in the sky.
So, what makes the moon disappear mysteriously, - the already difficult year more gloomy? According to a - published in the April 21 issue of scientific reports, the researchers explained that the mysterious disappearance of the moon at that time and the ensuing summer rain storm could be attributed to the same cause volcano.
"On the fifth day of May, the evening moon shines brightly, and then its light fades away," the unknown scribe wrote in an Anglo Saxon manuscript called the Peterborough chronicle. "As the night came, it went out completely, and no light or anything could be seen. It lasted almost until dawn, and then there was a bright light. "
By using quasars, the team hopes to eliminate the observation bias faced by previous studies. To some extent, they succeeded. "In this way, you may be able to sample galaxies more reasonably," said Alfred Tilley, an astronomer at the University of Western Australia
