Martian wannabes will have to wait a little bit longer before landing on the enigmatic red planet, according to NASA.
美国国家航空航天局称,火星迷们在登上这颗神秘的红色星球前,还需要再等上一段时间。
The space agency says it's about 25 years away from sending the first human to Mars and has spelled out what it will take to make this space travel plan pan out.
该航天机构表示,将首个人类送上火星还需要大约25年的时间,并阐明了如何才能使这一太空旅行计划成功。
Scientists still have to work out major kinks -- such as deadly radiation from the cosmos, potential vision loss, and atrophying bones -- before sending a human to Mars, known for its uNPRedictable atmosphere.
科学家们在将人类送上以不可预知的大气而闻名的火星之前,还需要解决一些重大问题,比如来自宇宙的致命辐射、潜在的视力丧失和骨骼萎缩。
They're also trying to shave some time off the commute: It could take nine months or so to reach the red planet, which is located about 140 million miles from Earth.
他们还试图减少往返时间:目前需要9个月左右的时间才能到达这颗距离地球1.4亿英里的红色行星。
Also, floating in prolonged zero gravity can cause acute medical conditions, such as irreversible changes to blood vessels in the retina, leading to vision degradation, and the skeleton can leach calcium and bone mass.
此外,在失重状态下长时间漂浮会导致急性疾病,比如视网膜血管发生不可逆转的变化导致视力下降,骨骼会流失钙和骨质。
With former astronaut Tom Jones admitting budget constraints will hobble NASA's attempts to send its first human for about 25 years, those of us dreaming of a vacation to Mars dubiously look to SpaceX as our only hope.
前宇航员汤姆·琼斯承认,有限的预算将阻碍美国国家航空航天局,使得他们要花大约25年才能尝试将首位人类送上火星,我们当中那些梦想着去火星度假的人只能试着把美SpaceX公司视为唯一的希望了。
历年雅思高频词汇精选-gallery
历年雅思高频词汇精选-magnificent
历年雅思高频词汇精选-faculty
历年雅思高频词汇精选-penalty
历年雅思高频词汇精选-habitat
历年雅思高频词汇精选-access
历年雅思高频词汇精选-idealism
历年雅思高频词汇精选-ignorance
历年雅思高频词汇精选-dawn
魔兽中的雅思词汇 游戏学习两不误
历年雅思高频词汇精选-ideal
历年雅思高频词汇精选-ease
历年雅思高频词汇精选-series
历年雅思高频词汇精选-ecology
历年雅思高频词汇精选-ignorant
历年雅思高频词汇精选-efficient
雅思必备词汇:前缀和后缀(1)
历年雅思高频词汇精选-magnet
历年雅思高频词汇精选-halt
历年雅思高频词汇精选-resource
历年雅思高频词汇精选-garbage
历年雅思高频词汇精选-fabric
历年雅思高频词汇精选-academic
历年雅思高频词汇精选-dean
历年雅思高频词汇精选-effect
历年雅思高频词汇精选-label
历年雅思高频词汇精选-cashier
历年雅思高频词汇精选-capture
20个雅思词汇经典记忆法
历年雅思高频词汇精选-fabulous
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |