Earliest recorded record of an aurora.
The earliest recorded record of an aurora may have been discovered by researchers. The ancient Bamboo Annals, a chronicle of Chinese history written in the 4th century BCE, contains a mention of a “five-colored light” in the northern sky. According to LiveScience, the event happened around 1000 BCE during the Zhou Dynasty. According to a study team led by physicist Hisashi Hayakawa of Japan’s Nagoya University, the aurora allusion was previously mistranslated as referring to a comet, even though the Bamboo Annals have already been thoroughly investigated.
Until today, the first documented mention of an aurora was found on cuneiform tablets from ancient Assyria, roughly 300 years after the Chinese discovery. The colorful phenomenon, sometimes known as the northern lights, is mainly associated with northern latitudes. Stargazers now would have little to no chance of seeing aurora in China’s mid-latitudes; but, 3000 years ago, “Earth’s north magnetic pole leaned toward the Eurasian landmass, at around 15 degrees closer to central China than it does today,” according to LiveScience. Because of this difference, ancient humans as far south as Beijing—and even in the region that is now New York City—could have seen stunning auroral phenomena.
Solar flares and coronal ejections from the sun, a “living, breathing ball of gas,” produce changes in Earth’s magnetic field, according to NASA. While Earth’s atmosphere protects the globe from most solar particles, greater disturbances can cause magnetic storms, which cause atmospheric elements to shine in red and green, purple and blue, respectively. Studying past auroras, according to Hayakawa and colleagues, isn’t just for historical purposes; such findings can help scientists “predict long-term trends of space weather and solar activity.”
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Nasa said that causes changes in the Earth’s magnetic field.
According to NASA, solar flares and coronal ejections from the sun, a “living, breathing ball of gas,” cause changes in the Earth’s magnetic field. While the Earth’s atmosphere shields the planet from most solar particles, larger disturbances can generate magnetic storms, which turn atmospheric elements red, green, purple, and blue. According to Hayakawa and colleagues, studying past auroras isn’t simply for historical purposes; it may also assist scientists in “predicting long-term trends of space weather and solar activity.”
The northern lights, also known as the aurora borealis, may now be seen at northern latitudes, while the southern lights, also known as the aurora australis, can be seen at southern latitudes. The Earth’s north magnetic pole, however, was tilted toward the Eurasian continents in the mid-10th century B.C., nearly 15 degrees closer to central China than it is today. As a result, ancient inhabitants living in central China — possibly as far south as 40 degrees latitude, or just north of Beijing — may have witnessed geomagnetic storms and the multicolored lights they created, according to the researchers.
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