The solar ejections that cause auroras can also create geomagnetic storms that can affect spacewalking astronauts, Earth-orbiting satellites, and even communications and power systems on the ground.
We do a lot of the spacewalking training in a very large swimming pool, about 40 feet deep.
我们在一个很大的大约有40英尺深的游泳池里进行大量的太空行走练习。
A pair of spacewalking astronauts wired the international space station's newest room on Saturday, crossing the last major task off their to-do list before the next shuttle mission early next month.