游客2022-05-07
maybe human should just leave the other planets alone

游客2022-05-07
去火星的难度在于飞行途中的生命维持，现有的航天器不足以带够足够的食物重量，接下来是降落，在火星着陆可比月球难太多……然后就是怎么在火星上生存，无磁场，致命的宇宙射线照射表面，气候条件极端等等，不然送上火星就是送死！人类还需要很多探测器的验证，最近马斯克扬言的火星任务，理性一点看，应该是绕地宇宙的商业化前奏而已！

游客2022-05-07
　　MARS: Inside SpaceX will go inside SpaceX's plan to get humanity to Mars providing an unprecedented glimpse into one of the world's most revolutionary companies. Filmed over the course of three years - this journey will take us behind the scenes with Elon Musk and his engineers - as they persevere amidst both disheartening setbacks and huge triumphs to advance the space indust...

游客2022-05-07
人类每次正视自己的渺小，都是自身的一次巨大进步。

游客2022-05-07
最后一段看得人热血澎湃，甚至有点儿眼角湿润。埃隆马斯克让人钦佩！