Right. Can someone explain? One of the circles has a white dot in the middle that looks like it could be just dust. The other a faint dark dot in the middle again that looks like maybe just dust or dirt. Nothing really in them that doesn’t just look exactly like what’s around them.
Hence the phrase "her well-trained eyes" in the article: to her, your last sentence would be false, because she's spent years (maybe decades) working in this field.
It’s like the Pale Blue Dot: one could mistake the one pixel of the Earth for some noise in the optics.