“上了一天班的你困吗”，这两天，地磁暴引起大量讨论，很多打工人表示：“怪不得这两天这么困，坐在工位上一直打哈欠”，终于为自己找到了一个“科学借口”。何为地磁暴？地磁暴对人类究竟有何影响？
Auroras may look stunning from here on Earth, but the geomagnetic storms that cause them could also pose a potential threat to our planet.
Here's why.
It all starts 93 million miles away with a tremendous burst of energy from the sun.
These explosions can be categorized into two events: CMEs or solar flares.
A CME, or coronal mass ejection, is a giant cloud of particles hurled into space.
This phenomenon will typically take between one to five days to reach the Earth.
A solar flare is a giant burst of x-rays and energy, which takes about eight minutes to make it to our planet.
These space weather events only impact Earth when the explosion occurs on the side of the sun that is facing our planet.
The explosions produce a gust of solar wind, which hurdles through space, temporarily disrupting the outer part of Earth's magnetic field.
This causes a geomagnetic storm, also referred to as a solar storm.
