The biggest CubeSat antennas we have right now are about half a meter.

目前最大的返回计算集天线有半米长。

The goal of LightSail 2 is to demonstrate that solar sails can be used to propel small satellites called CubeSats.

" 光帆2号" 的目标是证明太阳帆可用于推进 " 立方体卫星" 等小型卫星。

CubeSats are designed to tag along as passengers on the launches of bigger spacecraft.

立方体卫星的设计目的是作为乘客跟随更大的航天器的发射。

Even school pupils can have their CubeSats put in orbit owing to the lowered launching cost.

4. 由于发射成本降低，即使是小学生也可以将立方体卫星送入轨道。

With NASA's CubeSat Launch Initiative, a bunch of super small satellites are being put up into orbit.

通过美国宇航局的立方体卫星发射计划，一批超小型卫星正在被送入轨道。

The Altamira comet, by contrast, is designed to fly as a CubeSat—a miniature satellite 10cm on each edge.

相比之下，阿尔塔米拉彗星被设计为作为立方体卫星飞行——一颗每边 10 厘米的微型卫星。

The CubeSat specification limits the satellite's payload to a volume about the size of a cricket ball.

CubeSat 规范将卫星的有效载荷限制在一个板球大小的体积内。

As an organization of volunteers, AMSAT was putting " amateur" satellites in orbit decades before the current CubeSat craze.

作为一个志愿者组织， AMSAT 在当前 CubeSat 热潮出现之前几十年就将“业余” 卫星送入轨道。

Even with constraints, it is possible for some creative developers to take the CubeSat technology in directions that result in harmful outcomes.

7. 即使有限制，一些有创意的开发人员也有可能将 CubeSat 技术用于导致有害结果的方向。

But they can attain more distant orbits; NASA plans for most of its future Earth-escaping payloads (to the moon and Mars especially) to carry CubeSats.

但是它们可以到达更远的轨道；美国国家航空航天局计划其未来大部分逃离地球的有效载荷（尤其是月球和火星）携带立方体卫星。

In an era when you can simply buy a CubeSat kit off the shelf, how can we trust the satellites over our heads were developed with good intentions by people who knew what they were doing?

在一个你可以简单地购买现成的 CubeSat 套件的时代，我们怎么能相信我们头上的卫星是由知道自己在做什么的人出于善意开发的？

Here's where there needs to be a much wider public conversation that extends beyond government agencies and scientific communities to include students, hobbyists, and anyone who may potentially stand to be affected by the use of CubeSat technology.

这就是需要进行更广泛的公共对话的地方， 这种对话超出了政府机构和科学界的范围，包括学生、业余爱好者和任何可能会受到 CubeSat 技术使用影响的人。