Stepping out into the universe we must confront the reality of interstellar travel.

离开地球，走进宇宙，我们就必须面对星际穿越的真实情况。

I've made several videos already on topics like black holes, the size of the universe, and interstellar travel, which you can watch later.

我已经做了几个关于黑洞、宇宙大小、星际旅行等话题的视频，你们可以稍后观看。

Either way, the Earth will have been long dead, and hopefully humanity will have figured out the trick to interstellar travel by that time.

不管怎样，那时的地球早已死亡，希望到那时人类已经找到了星际旅行的诀窍。

We've got a long way to go to achieve a Star Trek level of interstellar travel.

要达到《星际迷航》级别的星际旅行，我们还有很长的路要走。

Though Star Chip remains conceptual, its innovative propulsion system may lay the foundation for interstellar travel in the next century.

尽管 Star Chip 仍处于概念阶段，但其创新的推进系统可能会为下个世纪的星际旅行奠定基础。

He speculated that in the future, terminally ill patients could be cryopreserved, awaiting cures that may emerge, while astronauts could be frozen for interstellar travel, awakening in distant galaxies.

他推测，未来，晚期病人可以被低温保存，等待可能出现的治疗方法，而宇航员则可以被冷冻进行星际旅行，在遥远的星系中醒来。

Project Daedalus ended in 1978 without a working prototype; but the project was a crucial experiment, which proved interstellar travel was not only possible but on the horizon.

Daedalus 项目于 1978 年结束，没有可用的原型；但该项目是一项至关重要的实验，它证明了星际旅行不仅是可能的，而且已经在地平线上。

The project is called DEEP-IN, and its goal is to use electromagnetic acceleration to get ships close-ish to the speed of light -- fast enough that interstellar travel could actually make sense.

该项目称为 DEEP-IN，其目标是利用电磁加速使飞船接近光速——快到足以让星际旅行真正有意义。