字幕列表 影片播放 列印英文字幕 SpaceX is a space exploration company founded by everyone’s favorite charismatic James Bond villain Elon Musk, dedicated to cost efficient space travel and exploration. They also love to land rockets on these tiny barges out in the middle of the ocean. So given the vast amount of resources that the company has, why not just return those rockets back to land instead of a tiny drone ship out at sea? Rockets such as the Falcon 9 are currently used for space delivery, bringing satellites into orbit or sending cargo to the International Space station. Traditionally, when rockets launch into space, they need a lot of thrust to get through the earth’s atmosphere. Once it gets to the prescribed altitude, the rocket drops its first stage, relying on fewer engines to get it to where it needs to go. That first stage then usually burns up in the earth’s atmosphere or perpetually orbits the earth creating space junk. SpaceX, however, is dedicated to making space travel cost efficient, and have made it a priority to bring the first booster stage back to earth to save the cost of making new ones every time someone at the International Space Station needs a refill. And when so much fuel has been burned on high velocity missions, it’s impossible to bring those first stage pieces back to the spots from where they originally launched on land - leaving the only option for a safe landing to be out at sea. And that is why we have these really expensive rockets landing on these tiny barges in the middle of the ocean. These autonomous spaceport drone ships are located in the pacific and atlantic oceans and have names like Just Read the Instructions and Of Course I Still Love You. While it may seem that someone was naming these high tech barges after text messages in their phone, they are actually named after two sentient starships from the science fiction novel The Player of Games. Which is appropriate because this may all seem like a sci-fi dream, but it’s very much a reality. So see you on Mars, guys.
B2 中高級 美國腔 為什麼SpaceX要把火箭降落在駁船上?|Mashable解釋 (Why Does SpaceX Land Rockets on Barges? | Mashable Explains) 62 8 alex 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字