intergalactic space
Cosmic emptiness between
Intergalactic space is the vast emptiness between galaxies—regions containing almost no matter, just a few stray atoms per cubic meter.
It represents the most extreme vacuum in the known universe: signals crossing intergalactic space, the cold depths of intergalactic space.
The adjective intergalactic describes anything occurring between or spanning galaxies.
- voidsEmptinesses or nullifies
- superclustersMassive galaxy cluster formations
- filamentsVery thin threads
- ionized gasElectrically charged atomic matter
- hydrogenSimplest atomic element
redshift · dark matter · helium · neutrinos · emptiness · vacuum · light-years · dark energy · infinity · expanse · great beyond · the final frontier · gravitational waves · distant · plasma · celestial · cosmic ocean · black
intergalactic spacegalactic core
Central region of galaxy
galaxy · galactic center · solar system · interstellar space · star system
intergalactic spacestar
Luminous astronomical object
black hole · neutron star · planet · celestial body · star cluster
space, galaxy, spacecraft, galactic, interstellar, spaceflight, spacetime, outer space, intergalactic