Can someone explain this to the uninitiated? I remember when that black hole picture came out, it turned out actually to be: "how this algorithm we invented generates an image of a black hole", so not really a "picture" in the colloquial sense.

Here I'm having trouble understanding how we could actually "record video" of a bond forming and I'm not even sure the words "record" and "video" are what I think they mean. For instance, could the frame rate of our video-recording technology really be high enough to "capture" something that probably happens near-instantaneously? And what "wavelength" is the light used to record these videos -- wouldn't it need to be tinier than the kind of light we usually use, in order to capture atoms? I'm sorry if this is vague, but I don't know enough terms to pose this question rigorously.