And those highly charged particles have been barreling towards Earth at 500 miles per second ever since.

从那时起，这些高电荷粒子就以每秒500英里的速度冲向地球。

The storm with its highly charged particles could also be radioactive and present a danger to astronauts in orbit.

带有高度带电粒子的风暴也可能具有放射性，对轨道上的宇航员构成威胁。

Normally, the earth's magnetic field deflects most of the highly charged particles.

正常情况下，地球磁场会使大部分带电粒子发生偏转。