Discovered -> "Observe" is better

Gigantic Structure -> "Cosmic structure" is better than the subjective "gigantic", as everything cosmic is by definition gigantic and it seems to imply some sort of amazement at its size

in a

Hidden Zone of Space -> "Obscured" zone of space would again be better

So how about "First Observation of Cosmic Structure in Obscured Zone of Space"

I'm not an editor, and if I can come up with a more accurate and less sensationalized title, one can only conclude that whichever editor was behind this specific headline was deliberate in their choice of its clickbaity feel