Astrophysical object
Cosmic Void
Cosmology & UniverseEstablished Science
Definition
An enormous, nearly empty region of space between the filaments of the cosmic web.
Scientific overview
Voids are vast underdense regions, tens to hundreds of millions of light-years across, containing few galaxies. They occupy most of the Universe's volume and are sensitive probes of dark energy and gravity.
Related topics
Knowledge connections
- Part ofThe Cosmic Web
- Related toCosmic Filament
- Related toThe Cosmic Web
- Related toLarge-Scale Structure
- Related toCosmic Filament
- Associated withThe Boötes Void
Sources & references
The primary and reference sources this topic draws on.
- ESOEuropean Southern Observatory
Southern-hemisphere observatory data and imagery (VLT, ALMA partner).
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.