AURORA NOW

Copyright ESA/IPEV/PNRA/ A. Mancini

Description：Throughout human history, spectacular auroral eruptions have given rise to fearful beliefs of mythological creatures, have driven folklore and have influenced culture, religion and art.

Today, we know the aurora are the visible manifestations in our atmosphere of space weather, and occur when electrically charged particles from the Sun collide with Earth’s atmosphere. These particles are delivered by the 'solar wind’ — a constant stream of electrons, protons and heavier ions — emitted by our Sun.

極光

在整個(gè)人類的歷史中，壯觀極光的爆發(fā)往往會(huì)引起對(duì)神話生物的恐懼信仰，驅(qū)動(dòng)民間傳說(shuō)的傳播，并在很大程度上影響宗教、文化和藝術(shù)。

在今天，我們知道了極光是發(fā)生在大氣層空間的一種光學(xué)現(xiàn)象，是由太陽(yáng)的帶電粒子和地球大氣相導(dǎo)致的。這些粒子是由太陽(yáng)發(fā)出的“太陽(yáng)風(fēng)”，是恒定的電子、質(zhì)子和重離子流。

高清原圖地址：

https://www./var/esa/storage/images/esa_multimedia/images/2019/09/aurora_now/19707114-1-eng-GB/Aurora_now.jpg

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