They'd be constantly exposed to space radiation.

长期暴露在太空辐射中。

Space radiation is a known phenomenon that is dangerous to biology, whether it's during a geomagnetic storm or just the general thrust into outer space.

太空辐射是一种已知的对生物有害的现象，无论是在地磁风暴期间，还是仅仅是外太空的一般性推力。

There are a few different sources of space radiation.

空间辐射有几种不同的来源。

The atmosphere of the Earth protects us from solar winds and space radiation.

地球的大气层保护我们免受太阳风和太空辐射的伤害。

Earth's magnetosphere wouldn't be able to protect you from space radiation blasting from all directions.

地球的磁层无法保护您免受来自各个方向的太空辐射冲击。

You could look up the sky to see a faint glow of space radiation mostly blocked out by the Earth's atmosphere.

你可以抬头仰望天空， 看到微弱的太空辐射辉光，大部分被地球大气层阻挡。

Figuring out how weightlessness and low gravity situations alter human performance and how space radiation affects people represents just a couple areas where there are likely to be positive by-products for future travel.

弄清失重和低重力环境如何改变人的表现，以及太空辐射如何对人产生影响——对未来的太空旅行来说，这只是可能附带产生有益影响的两个领域而已。