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Okay, relative to this, there's one other thing. Like, I did this research, it really kind of struck me a bit surprising. You know, if you look at M51, and for those of you near a computer, you can do this. If you get online and look at the Whirlpool, it's one of these, you've seen this. It's this beautiful spiral galaxy. It's 27 million light years away, it spans 76,000 light years in diameter, and it's got about 160 billion solar mass. It's the size of this thing, it's huge, right? But in the background, there's this companion galaxy, NGC 5195.