Solar storms aimed at Earth come in three stages, not all of which occur in any given storm.

扑向地球的太阳风暴分三个阶段，但并不是所有的阶段都发生在特定的风暴中。

A solar storm headed for Earth isn't a guarantee of auroras.

冲着地球来的太阳风暴并不是极光出现的保证。

The most powerful known solar storm occurred in 1859, Bogdan said.

伯丹称，有据可查的最强太阳风暴发生在1859年。

An astronaut might get a 30 minute warning of an incoming solar storm.

一名宇航员可能会得到30分钟的太阳风暴进来的警告。

He said that in 2012, solar storm possibly would have the same impact.

他说2012年的太阳风暴可能会造成同样的后果。