As always, the headline lies about what the article says.
Headline: “Image of a single strontium atom”
Article: “we can see the glow, without actually seeing the atom itself”
In other words, nothing. We see the glow of atoms all the time - only it’s from billions of atoms. This claims to be from one atom.
An individual atom is much too small to be resolved by the human eye, or any camera, since it is smaller than the wavelength of the light used to photograph it.
In other words, nothing. Hype as usual.
I don’t think the headline is so very wrong. After all, we don’t actually see the Sun. We see the “glow” from the Sun.
We don't see the stars either, except by their light.
A star a million miles wide, at a distance of a 10 light years, would seem about as wide as a basketball 10,000 miles away.