Portal: A Video Game That Helps Us Understand Physics

I imagine there's a lot of people who will not be relaxed until it's all good, right? It's never a sure thing. I mean, you think of space as being empty. Nothing can happen to it. But for one, this is something that was built by humans. There could be some subtle mistake in there somewhere. And another space isn't entirely empty. One of the threats that we have to deal with is what's called micromedia rights,. These really tiny chunks of rocks that we can't see up there, but could slam into the telescope and not get about. You just have to hope for the best really.