supervoid
Vast galactic desert
A supervoid is an immense region of space containing far fewer galaxies than average—not truly empty, but underdense compared to the cosmic web of matter surrounding it.
These structures span hundreds of millions of light-years and represent the largest known features in the universe.
The Cold Spot in the cosmic microwave background may be caused by a supervoid.
Absence of matter
- barrenUnable to produce
- desolateBleak and abandoned
- hollowEmpty within
- rarifiedExclusive, elevated, thin
sparse · diffuse · tenuous · nothingness · absence · scarcity · lacuna · paucity
Departure from the expected
- enigmaSomething hard to fathom
- unknownNot yet discovered
- puzzleChallenge testing ingenuity
- phenomenonExtraordinary observable occurrence
unexplained · discovery · curiosity · detection · mapping · observation · hypothesis · theory
Complete system or domain
- cosmicPertaining to the universe
- expansionIncrease in scope
- redshiftWavelength stretch from recession
- galaxiesGravitationally bound stellar assemblies
inflation · cosmological · astrophysics · quasars · relativity · space-time · nebulae · multiverse
Extremely large in scope
- enormousExtremely large in scale
- vastExtremely great in size
- colossalExtremely large in scale
- boundlessWithout any boundaries
expansive · gigantic · unprecedented · unfathomable · incomprehensible · staggering · monumental · astronomical
vacuum
Absence of matter
rarified · sparse · diffuse · tenuous · nothingness · absence · scarcity · lacuna · paucity · deficiency
anomaly
Departure from the expected
phenomenon · unexplained · discovery · curiosity · detection · mapping · observation · hypothesis · theory · research
universe
Complete system or domain
galaxies · inflation · cosmological · astrophysics · quasars · relativity · space-time · nebulae · multiverse · coldspot
immense
Extremely large in scope
boundless · expansive · gigantic · unprecedented · unfathomable · incomprehensible · staggering · monumental · astronomical
supervoidsupercluster
Largest gravitationally bound structures
galaxy cluster · black hole · quasar · singularity · supermassive black hole
super, void, voids, voided, voiding, avoidance, avoid, avoids, avoiding