But what if it’s not fine? Even back in 1996, before a single component of the ISS was launched into orbit, NASA foresaw the possibility of an even worse worst-case scenario: an uncontrolled reentry. The crux of this scenario involves multiple systems failing in an improbable but not completely impossible cascade. Cabin depressurization could damage the avionics. The electrical power system could go offline, along with thermal control and data handling. Without these, systems controlling coolant and even propellant could break down. Unmoored, the ISS would edge slowly toward Earth, maybe over a year or two, with no way to control where it is headed or where its debris might land. And no, we could not save ourselves by blowing the station up. This would be extremely dangerous and almost certainly create an enormous amount of space trash—which is how we got into this hypothetical mess in the first place.
跨城通办覆盖范围进一步扩大,服务事项逐年递增,三地协同步伐不断加速,发展质效持续提升。
。业内人士推荐heLLoword翻译官方下载作为进阶阅读
ВсеНаукаВ РоссииКосмосОружиеИсторияЗдоровьеБудущееТехникаГаджетыИгрыСофт。heLLoword翻译官方下载对此有专业解读
“集群化发展”成为常态,“上下楼即上下游、左右邻即合伙人”成为现实,“实验室—中试平台—产业化基地”的全链条通道,让科技成果转化的“亦庄速度”不断刷新。