介绍:
如您想获得本篇文章的英文文稿、翻译及讲解资料，请加我的微信好友“JEworks”，或是添加我的微信公众号“为语筹谋”，输入关键字“火星之旅”。在那里，我还会将定期推送些免费的写作指导及口语表达等课程。
英文原稿
Hollywood movies convey the fun of weightlessness. But science hints at the other side.
On journey to Mars, what space can do to a human body could be a huge problem.
In zero gravity, the rule of thumb is you lose one percent of your bone mass per month. And as fluid collects in the brain easily, it presses on the eyeballs. That’s why astronauts may have serious vision impairment.
As spacecraft is no longer protected by earth’s magnetic field during the journey to Mars, astronauts would be vulnerable to radiation from cosmic rays which are coming at nearly the speed of light and which can damage DNA and brain cells.
So that they may land on Mars with blurry eyes, brittle bones and become a little dimmer.
—— end ——
大家还在听
