Can you find who doesn't belong to this universe ?
Not sure this is the answer, but it is certainly a start.
((( )))doesn't belong to this Universe.
This Universe? No, I mean "this Universe", if you follow.
The images all represent a letter in "THIS UNIVERSE". T: titanium, H: halo I: index, S: spheres, U: union, N: Newton, I: iota currency, V: Van Allen belt, E: enter, R: robot, S: silane, E: (solar) eruption?
The final image
((( )))seems to fit nowhere.
Unless it represents the space character between the words in "this Universe".
I would be tempted to say "Space doesn't belong to this Universe". That sounds cool. But that doesn't quite fit. If you understand the last image as "space", then it does belong to "this Universe".
PS: A little voice in my ear wispers "the molecule is methane and the last symbol is "echo". This means the sequence ends with robot-methane-sun-echo. And clearly methane is out of sequence.
The answer: M for methane doesn't belong to "this Universe".