Astronomy Picture of the Day——极光

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.

极光

在整个人类的历史中,壮观极光的爆发往往会引起对神话生物的恐惧信仰,驱动民间传说的传播,并在很大程度上影响宗教、文化和艺术。

在今天,我们知道了极光是发生在大气层空间的一种光学现象,是由太阳的带电粒子和地球大气相导致的。这些粒子是由太阳发出的“太阳风”,是恒定的电子、质子和重离子流。

高清原图地址:

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

近期文章:

Astronomy Picture of the Day——西面纱星云

Astronomy Picture of the Day——印度上空的巨大喷流

Astronomy Picture of the Day——遥远的系外行星上发现的水气

NASA

微店

(0)

相关推荐