Researches Using Hubble Telescope Confirm Exoplanet Has Clouds
Would have made more sense. There is a dangling something or other in there.
I think this story must be cursed or something.
Anyhow, what we have in the story title is a misplaced modifier. The phrase "Using Hubble Telescope" functions as an adverb modifying the verb "confirm", but the editor has *misplaced* it in such a way that it could easily be misread as an adjective modifying "clouds". Yet while this modifier is misplaced, it is not quite "dangling"; to dangle it must refer to something that isn't in the sentence at all.
Dangling is usually the result of incomplete editing. You might start with "Using the Hubble Telescope, researchers find evidence of clouds on an exoplanet." After editing, you might end up with "Using Hubble Telescope, clouds are discovered on an exoplanet." The latter is a dangling modifier; its target "discovered" has been removed from the sentence, leaving the adverbial phrase "dangling". There is no alternative parsing in which the orphaned modifier makes sense, because what its target simply isn't there.