Their Project Starshot is working on an ultra-light, unmanned probe that would reach the star system in just 20 years.

他们的突破摄星计划正在研制一种超轻无人探测器，该探测器将能在 20 年内抵达比邻星系。

We're going and looking for places where we can put our unmanned surge probes.

我们正在寻找可以放置无人浪涌探测器的地方。

The United Arab Emirates has announced plans to send an unmanned probe to Mars by 2021 and it set up a national space agency to oversee the mission.

阿拉伯联合酋长国已宣布计划在 2021 年之前向火星发射无人探测器，并成立了一个国家航天局来监督这项任务。

Our knowledge of Venus's surface is based on distant radar imagery and some startled squawks from an unmanned Soviet probe that was dropped hopefully into the clouds in 1972 and functioned for barely an hour before permanently shutting down.

我们对金星表面的了解，是基于遥远的雷达图像，以及一艘苏联无人探测器发出的一些噪声。那个探测器于1972年满怀希望降落在云团里，运转不到一个小时就永远地关闭了。