Multiverse Detected
Above: Bubble universes may exist and come to a kiss proximity point relative to neighboring universes. This can have a likely effect on the adjacent universe.
The potential detection of the multiverse is made observationally by seeing the majority of a so called gravitational or otherwise pull of everything in our Universe sliding weighted to one side, as if to be pulled by a much more massive Universe. Generally these are imagined to be round, bubble in nature and symmetrical (above) but the reality may include fitting irregular shapes twisted and contorted to fit the In-Between-Universe-Froth (below).
The Multiverse may contain multiple universes of varying shapes and sizes governed by best fit due to affecting cosmological parameters. Illustrations by Humanoido