Eventually, we&#39ll move to a modified Mars time, which is what we&#39re working now.最终，我们得作息会依照修改过的火星的时间，这就是我们现在在做的。And that&#39s because it&#39s hard on your bodies, it&#39s hard on your families.因为这对你的身体和家庭都是个负担。In fact, there were sleep researchers who actually were studying us实际上，有睡眠专家一直在拿我们做实

So the reason there&#39s a time difference on Mars right now,火星上的时间和我们现在的时间是不一样的，from the time that we&#39re at is because the Martian day is longer than the Earth day.因为火星的一天比地球要长。Our Earth day is 24 hours, because that&#39s how long it takes the Earth to rotate, how long it takes to go around once

But of course, it&#39s 2016, so there&#39s an app for that.当然，到了2016年，已经有手机软件可以替代手表了。So now instead of the watches, we can also use our phones.现在我们可以用手机来代替手表。But the impact on families was just across the board但这对家庭的影响的确是非常大的；it wasn&#39t just those of us who were working on the rovers but our famil

So we would get off work, and we didn&#39t want to go home and bother our families,所以我们下班后，并不想回家去打扰家人，and we were hungry, so instead of going locally to eat something, we&#39d go,饿的时候，往往就近找些吃的。我们会说：&quotWait, there&#39s this great all-night deli in Long Beach, and we can get there in 10 minutes!&quo

Again, we didn&#39t start out thinking, &quotOh, let&#39s invent a language.&quot我们开始想：“对了，我们干脆发明一种语言吧。”It was just very confusing. I remember somebody walked up to me and said,刚开始真的非常的混乱。我记得有人走过来对我说：&quotI would like to do this activity on the vehicle tomorrow, on the rover.&quot“我明天要在漫游者上做这个任务。”An

So many of you have probably seen the movie &quotThe Martian.&quot我估计在座很多人都看过“火星救援”这部电影。But for those of you who did not, it&#39s a movie about an astronaut who is stranded on Mars,对于没看过的人来说，这是一部关于一名宇航员被困在火星，and his efforts to stay alive until the Earth can send a rescue mission to bring him back to

So while she&#39s sleeping -- and the rover does sleep at night当然，在她睡觉的时候，她晚上确实是在睡觉，because she needs to recharge her batteries and she needs to weather the cold Martian night.因为她需要给电池充电，而且她需要抵抗住火星晚上的低温。And so she sleeps. So while she sleeps, we work on her program for the next day.所以她需要休息。在她休息的时候，我

Hence, the Mars watch. This weights in this watch have been mechanically adjusted so that it runs more slowly. Right?这就是我的火星手表。这只手表的砝码用机械的方法调整过了，所以它走的相对慢一些。And we didn&#39t start out -- I got this watch in 2004 when Spirit and Opportunity, the rovers back then.但是我们还没开始--我在2004年得到这只表，当机遇号和勇气号探测器都到位后。

So we have the watches and the language, and you&#39re detecting a theme here, right?我们有特制的手表和专门的语言，现在你们明白了吧？So that we don&#39t get confused. But even the Earth daylight could confuse us.这样我们不再搞混了。但是连地球的阳光，也会使我们感到困扰。If you think that right now, you&#39ve come to work and it&#39s the middle of the M

So we don&#39t have people on Mars right now, but we do have rovers.我们现在并没有人类生活在火星，但是我们有漫游者探测器。And actually right now, on Curiosity, it is 6:10 in the morning.现在，好奇号漫游者的时间是早上6点10分。So, 6:10 in the morning on Mars. We have four rovers on Mars.也就是说火星时间是早上6点10分。我们有四个漫游者在火星。The United States has put four

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