Hands says his visualization features all of the all the exoplanets that have been found around single stars, "ordered roughly by semi-major axis of largest orbit," and is "designed to give the viewer an overview of the current distribution of exoplanets." Here it is at 2x speed:
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It blows my mind to know that there was a time in my lifetime that we didn't actually know of any exoplanets. We assumed they existed but we hadn't actually verified it yet. And now after a few years we know of hundreds.