Cosmic voids are vast spaces between filaments (the largest-scale structures in the Universe), which contain very few or no galaxies. Most galaxies are not located in voids, despite their size, due to most galaxies being gravitationally bound together, creating huge cosmic structures known as galaxy filaments. The cosmological evolution of the void regions differs drastically from the evolution of the Universe as a whole: there is a long stage when the curvature term dominates, which prevents the formation of galaxy clusters and massive galaxies. Hence, although even the emptiest regions of voids contain more than ~15% of the average matter density of the Universe, the voids look almost empty to an observer.
Voids are believed to have been formed by baryon acoustic oscillations in the Big Bang, collapses of mass followed by implosions of the compressed baryonic matter. Starting from initially small anisotropies from quantum fluctuations in the early Universe, the anisotropies grew larger in scale over tim
1 view
31
6
3 months ago 00:34:14 1
Dublin Ireland October 2024| 4K Autumn Walk | Grand Canal Dublin, Rathmines, UHD City Walk
3 months ago 00:04:13 1
Maykors & Pyxis - Untitled Day
3 months ago 00:18:17 1
Lovely sunny day in Dublin City centre | 4k walking tour of Dublin City | Temple bar Dublin
3 months ago 00:04:37 1
Retrospekt - Reticent
3 months ago 00:04:51 1
Halftone - Rendezvous
3 months ago 00:03:33 1
Trentemøller: Moan (Official music video) (HD)
3 months ago 00:04:37 1
Retrospekt - Persistence
4 months ago 00:05:07 1
Phabiaz - Sentimental Mood
4 months ago 00:04:28 1
Marvel Cinema & Luke Truth - Open Your Eyes
4 months ago 00:04:46 1
Neuron - Searching
4 months ago 00:04:26 1
Tenkei - Ougon
4 months ago 00:04:50 1
Neuron - No More
4 months ago 00:05:59 1
DIY dried fruit powder for natural food flavouring and coloring | relaxing cooking video
4 months ago 00:04:36 1
Neuron - Time
4 months ago 00:04:26 1
Neuron - Always Together
4 months ago 00:03:57 1
Tenkei - Unity
4 months ago 01:15:41 1
Celsius Podcast #89 - Mixed by Nelver @ 10 Years Anniversary
4 months ago 00:03:31 1
Jacques Maya - Free Fall
4 months ago 00:36:33 1
Bill Gates speaks to Rt Hon Jeremy Hunt MP in exclusive Policy Exchange interview