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斯坦曼何时重回地球?

When will Starman return to Earth?

On the 6th of February 2018, the Falcon Heavy launched Starman
2018年2月6日 猎鹰重型运载火箭将“斯塔曼”
in a Tesla Roadster into space.
搭载在一辆特斯拉“路之星”上送上太空
During this spectacular event, Starman orbited the Earth for 6 hours,
首先斯坦曼绕地飞行6小时
capturing beautiful images before the Falcon Heavy upper stage
拍摄美丽的图景之后 猎鹰运载火箭上层
sent the car into an orbit around the sun.
将敞篷车送入太阳轨道
But where is Starman now?
但斯坦曼如今在哪里呢?
And will we ever see him again?
我们能再次见到它吗?
In this video, we’re going to look at the long journey Starman has been on since leaving Earth.
在此视频 将看到斯坦曼离开地球后的漫漫旅程
We’re also going to look at when he might return to Earth and the possible solutions
也将看到它何时重返地球
we have for retrieving him.
以及我们能检索到它的可能之法
After Starman left Earth’s orbit, scientists and amatuer astronomers around the world pointed
斯坦曼离开地球轨道后 为了追踪跑车
their telescopes towards the night sky in order to track the Roadster
全球科学家和业余宇航员都将望远镜对准夜空
and predict its future orbit.
同时 预测其未来的轨道
A team at JPL used data provided by SpaceX and
喷气推进实验室的一支队伍利用太空探索技术公司提供的数据
predicted that Starman would pass by earth in th year 2091,
预测斯坦曼将于2091年
getting within a few thousand kilometers.
在距地球几千千米的范围以内路过地球
This model proved to be accurate for the first few months, but since it was made from a limited
最初几个月 此模型被证明准确无误
amount of data, anything beyond that became increasingly inaccurate.
但由于是据有限数据而得出 之外的推断变得越来越不准确
It wasn’t until March of this year that we got a solid prediction of Starman’s future.
至今年三月 才预测出斯坦曼可靠的未来
Thanks to an observation of the Roadster seen from a telescope in South Africa,
多亏位于南非的一台望远镜对跑车的观测
JPL were able to refine their measurements and accurately predict
喷气推进实验室才能精进测量并准确地预测
Starman’s path for the next 50 years.
斯坦曼未来50年的轨迹
They concluded that Starman is on a path that will pass by Mars in the year 2020,
据预测 斯坦曼将在2020年路过火星
getting within 4.5 million miles.
进入距火星45万千米的范围内
At this point, the current telescopes we have on Mars won’t be capable of observing an
关于这点 现位于火星的望远镜不能观察
object as dim as the Roadster.
到像跑车这么模糊的物体
Starman will make a closer approach to Mars in the year 2035,
斯坦曼将在2035年更加接近火星
getting as close as 1.5 million miles.
靠近到一百万五千英里的范围
By then, it’s likely that we’ll have more advanced telescopes on and around Mars
届时 我们很可能在火星及四周布置更先进的望远镜
to capture an image of the Roadster,
以捕捉跑车的影像
even if it’s just a tiny dot in the sky.
即使它只是空中的一个小点
Starman will make its closest approach to Earth in the year 2047,
斯坦曼将在2047年最接近地球
passing by at just 3 million miles.
路过距地球仅3百万英里的地方运行
At this distance, telescopes on Earth will be able to observe the Roadster and record
地球上的望远镜可以在此距离观察到跑车
its position in the sky, giving us a more refined prediction for many years to come.
并记录它在空中的位置 更精确预测其未来
But what if we were able to catch Starman during this close approach?
但此近距离下 是否能捕获到斯坦曼呢?
The idea of retrieving satellites from space isn’t unheard of.
从太空中恢复卫星的办法也听说过
Due to the enormous payload bay on the Space Shuttle, it was capable of retrieving faulty
由于航天飞机里巨大的有效载重舱
satellites and returning them to back to Earth.
卫星故障可以得到修复 并使其返回地球
During STS-51, astronauts managed to grapple two communication satellites into the payload bay
STS-51任务期间 宇航员用EVA喷气背包和机械手臂
using EVA jetpacks and the Shuttle’s robotic arm.
成功将两颗通讯卫星放进了有效载重舱
Those satellites were returned to Earth and sold to new customers who relaunched them
这些卫星被送回地球 售卖给新顾客
into the correct orbits.
他们又再将其发射进入轨道
However, retrieving satellites outside of Earth’s orbit is much more challenging and
但在地球外的轨道上重发卫星更具挑战
requires a lot more energy.
同时也需要大量能量
A japanese spacecraft which launched in 2014 has slowly made its way out to an asteroid
一架2014年发射的日本飞船已经渐渐靠近
180 million miles from Earth.
一颗距离地球1.8亿米的小行星
It has already managed to retrieve samples from the surface and it will continue to survey
它已成功地恢复了表面的样本 并继续探查此行星
the asteroid before returning those samples back to Earth in 2020.
直到2020年将样本带回地球
Although the Roadster is a much heavier sample to bring back from space, Starship could follow
尽管这辆跑车是太空中异常沉重的样品
a similar plan to retrieve the Roadster.
但飞船可效仿一个相似的计划以恢复跑车
With the enormous capability of Starship, it could refuel in Earth’s orbit and perform
功能强大的飞船能在地球轨道上给其供给燃料
a maneuver to match the Roadster’s orbit.
并调用演习机制调至跑车的轨道
With a large amount of fuel remaining, it could then capture the Roadster and store
因储存有大量燃料 它就可以捕捉到跑车
it in the payload bay before returning to Earth.
并在返回地球前将它存于有效载重舱
So perhaps one day, many years down the line, the generation that experienced the iconic
也许多年后的一天 经历过标志性猎鹰重载火箭的一代
Falcon Heavy launch will be reunited with Starman and his Roadster.
将会和斯坦曼及其跑车重聚
Or perhaps, it’s best to let him wander the solar system forever
亦或许 让其在银河系永久漫游是最好的选择
like a mascot for human civilization.
就像人类文明的一个吉祥物一样

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视频概述

一颗由敞篷跑车载入太空的卫星,何时才能回家呢?

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收集自网络

翻译译者

司马小仙女

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审核员XY

视频来源

https://www.youtube.com/watch?v=hDs5Abg0M9A

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