VISUAL ARCHIVE / IMAGE STORY
How the Gaps Become Larger
A conceptual web illustrates the changing contrast between overdense and underdense regions.
The growth of underdense regions is part of cosmic structure formation. Matter gathers preferentially in denser regions, leaving expanding voids within the galaxy network.
THE OBSERVATION
What we can actually see.
In structure-formation models, gravity changes the distribution of matter while the universe expands. The development of voids depends on the cosmological model and initial conditions; this still frame is not a measured time sequence of Boötes.
THE ILLUSTRATION
What the artwork imagines.
The composition visualizes this idea: A conceptual web illustrates the changing contrast between overdense and underdense regions. The growth of underdense regions is part of cosmic structure formation. Matter gathers preferentially in denser regions, leaving expanding voids within the galaxy network.
FROM THE ILLUSTRATED ARTICLE
The story that inspired it.
The article explores the discovery of the Boötes Void and the difference between a sparse intergalactic environment and an empty sky. It uses an imagined isolated observer to ask how surroundings could change our understanding of the wider universe. This frame focuses on a conceptual web illustrates the changing contrast between overdense and underdense regions.
Read The Great Nothing: What If Your Galaxy Was Trapped Inside 330 Million Light-Years of Emptiness?CHECK THE RECORD
The image interprets the research below. Follow the original work for the measurements and limits behind the scene.
Research record: doi.org/10.1086/183623 Research record: doi.org/10.1086/165080 Research record: ui.adsabs.harvard.edu/abs/1987ApJ...314L..33M/abstract Research record: arxiv.org/abs/astro-ph/9511128 Research record: doi.org/10.1086/118604 Research record: ui.adsabs.harvard.edu/search/q=title%3A%22A%20hierarchy%20of%20voids%22OTHER IMAGE STORIES
Keep looking.
The Great Underdensity
Absence Found in a Survey
The Mark Shared by Titan and PlutoEXPLORE IN 3D / MAP 13
Move outward through the cosmic neighborhood
Move from our galactic neighborhood toward the cosmic web. The explorer explains scale; it is not an observed map of the Boötes Void or the imagined civilization in this artwork.
Open Universe map