Mostly. This is because, theoretically, we could still save the ISS and move it into higher orbit. NASA has calculated that propelling the station more than 640 kilometers above Earth would keep it alive for 100 years—and also require at least 18.9 metric tons of propellant. That’s roughly 2,000 airline carry-ons. A thousand years would require at least 36 metric tons. If that doesn’t seem like very much, consider the fact that, right now, no vehicle can transport that amount of gas to the station. The still-in-development SpaceX megarocket Starship might be able to haul a significant percentage, but it would struggle to dock with the station, according to the space agency’s estimations.
Pocket 赛道到底能不能成，全看今年这几个抢跑玩家的表现。一旦市场逻辑被验证，观望的巨头势必蜂拥而至。到那时，大疆独占了数年的赛道，恐怕转眼就会变成惨烈的绞肉机。
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即用型 Colab Notebook
Artificial intelligence