If we mess up the earth gravity assist, we die.

如果地球引力助推搞砸了，我们会死。

About a year later, the craft reached Jupiter and got what's called a gravity assist.

在一年以后，飞船抵达木星并得到我们说的重力协助。

We don't intercept with earth at all...But we come close enough to get a gravity assist and adjust course.

我们完全不与地球对接，但可以近距离飞掠地球以得到引力助推并调整航线。

On October 9th, 2013, Earth will be used to gravity assist a spacecraft called Juno, which is on its way to Jupiter.

在2013年10月9日，地球将为一颗名叫“Juno" 的航天器做引力助推，向木星前进。

About a year later, the craft reached Jupiter and got what’s called a gravity assist.

大约一年后，飞船到达木星并获得了所谓的重力辅助。

The BepiColombo probe was launched in 2018 and is using a gravity assist maneuver to join Mercury's orbit for an eight-year journey around the planet.

BepiColombo 号探测器于 2018 年发射升空，目前正在使用重力辅助机动装置进入水星轨道，开始为期八年的环绕水星之旅。

Well, the Juice mission, named after the Jupiter Icy Moons Explorer spacecraft, is going to use some pretty cool physics to perform the first double gravity assist maneuver.

以 “木星冰月探测器 ”命名的 “果汁 ”号任务，将利用一些非常酷的物理学原理，首次进行双重力辅助机动。

This enabled the two Voyagers to use a gravity assist technique in which the craft were successively flung from one gassy giant to the next in a kind of cosmic version of crack the whip.

这就使得两艘旅行者号飞船能够利用引力帮助技术，以一种宇宙甩鞭的形式，被从一颗气态巨星连续甩到下一颗气态巨星。

In between passes, the asteroid would slingshot around the sun, fly out to Jupiter, and then be gravity assisted back to Earth - like one long version of catch between planets.

在两次飞行之间， 这颗小行星会绕着太阳弹射，飞向木星，然后在重力的帮助下返回地球——就像一个长版的行星间捕获。

Utilizing repeated gravity assists from Venus, the probe will enter into an elliptical orbit around the sun and at its closest point to the sun in orbit, the probe will achieve a velocity of an amazing 200 kilometers per second.

利用来自金星的反复引力辅助，探测器将进入一个围绕太阳的椭圆轨道，在轨道上离太阳最近的点，探测器将达到每秒 200 公里的惊人速度。