Universe Structure
Universe structure refers to the large-scale arrangement and composition of matter and energy throughout the cosmos. The observable universe exhibits a hierarchical organization, progressing from individual galaxies to galaxy groups and clusters, then to superclusters connected by vast filaments of matter. These structures are separated by cosmic voids—relatively empty regions of space. This large-scale structure formed through gravitational processes acting on primordial density fluctuations in the early universe.
Dark Matter and Gamma Ray Signals
Research into the composition of the universe has focused heavily on dark matter, which constitutes the majority of its mass. Recent studies have analyzed gamma ray emissions from the Milky Way to detect potential signatures of Weakly Interacting Massive Particles (WIMPs). Specifically, scientists have investigated annihilation signals that would indicate the presence and distribution of dark matter halos. These observations contribute to understanding the gravitational scaffolding that supports the observed cosmic web.
Source Notes
- 2026-04-24: Dark Matter WIMP Annihilation Signal Detected in Milky Way Gamma Rays · ▶ source