They say it’s a picture of atoms, but what are the atoms: the glowing yellow balls or the entire meatball including the darker red? If it’s the meatballs, then why do some have apparently two nuclei?
Here’s the public press release: https://news.cornell.edu/stories/2021/05/cornell-researchers-see-atoms-record-resolution
Here’s the actual scientific article: https://www.science.org/doi/10.1126/science.abg2533
Atoms are almost entirely empty space. And electrons themselves don’t really occupy a specific dot in space, they’re more of a blur that fuzzes out in a “large” region of space around the nucleus. So what’s shown here is most likely a visualization of the area that the electrons occupy.
But I’m no physicist and i didn’t read the article, so take this with a big grain of salt