The solar sail spacecraft is the only practical idea anybody has.

乘坐太阳帆宇宙飞船是唯一实际的想法。

A spacecraft is attached to a solar sail to capture wind pressure from sunlight.

太阳帆安装到航天器上以捕捉来自太阳光的风压。

We'd use a solar sail and we give it a push with a laser.

我们会用太阳能帆，然后用激光推动它。

The agency used a solar sail to propel the craft past Venus and into orbit around the sun.

该机构利用太阳帆将飞船推进金星并进入太阳轨道。

Learn how to use a solar sail to travel in space without any feel, or loads of other things.

学习如何使用太阳帆在没有燃料的情况下在太空旅行，或是其它丰富的知识。

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。

In addition to the satellites, the Falcon Heavy carried an atomic clock built by NASA, a solar sail project and even human ashes.

除卫星之外，猎鹰重型火箭还搭载着一个由NASA制造的原子钟、一艘太阳帆甚至还有人类骨灰。

That's the science behind solar sails, and we've already built spaceships that use them.

这就是太阳帆背后的科学，我们已经建造了使用它们的宇宙飞船。

Because of the success of IKAROS, other spacecraft may use solar sails in the future.

由于 IKAROS 的成功，未来其他航天器可能会使用太阳帆。

See, solar sails are limited, because the light coming from the sun only comes with so many photons.

看，太阳帆是有限的，因为来自太阳的光只有那么多的光子。

You can learn to track time like the ancients did, learn how to use a solar sail to travel in space without any fuel or loads of other things.

你可以学习像古人那样追踪时间，学习如何使用太阳帆在没有任何燃料或其他东西的情况下在太空中旅行。

When the photons in light bump into a solar sail, their momentum is transferred and the spacecraft is propelled forward a little bit.

当光中的光子撞击太阳帆时，它们的动量被转移， 航天器被向前推进一点。

DE-STAR's lasers would provide lots of light that we could use to take the solar sails concept one step further, and start building spacecraft that use laser sails.

DE-STAR 的激光器将提供大量光， 我们可以利用这些光将太阳帆概念更进一步，并开始建造使用激光帆的航天器。