The cosmic web as a research area focuses on the large-scale matter distribution in the Universe, characterized by a network of filaments, walls, nodes, and voids formed by gravitational amplification of primordial density fluctuations in dark matter and baryons. This field integrates cosmological simulations, large galaxy redshift surveys, weak gravitational lensing, and Lyα forest tomography to quantify the web’s topology, connectivity, and anisotropic collapse. Key objectives include constraining cosmological parameters, dark matter and dark energy models, galaxy formation and environmental effects, and testing structure-formation theories within the ΛCDM framework or its alternatives through statistical analysis of web morphology and dynamics.
An international team led by the University of Oxford has identified one of the largest rotating structures ever reported: a "razor-thin" string of galaxies embedded in a giant spinning cosmic filament, 140 million light-years ...
Astronomy
Dec 3, 2025
1
207
Now that we have tools to find vast numbers of voids in the universe, we can finally ask…well, if we crack 'em open, what do we find inside?
Astronomy
Nov 3, 2025
0
82
A Rutgers-led team of scientists has uncovered evidence of how galaxies expand by tracing the invisible scaffolding of the universe created by a mysterious substance known as dark matter.
Astronomy
Sep 18, 2025
0
129
If you think a galaxy is big, compare it to the size of the universe: it's just a tiny dot which, together with a huge number of other tiny dots, forms clusters that aggregate into superclusters, which in turn weave into ...
Astronomy
Sep 16, 2025
0
149
The magnetic fields that formed in the very early stages of the universe may have been billions of times weaker than a small fridge magnet, with strengths comparable to magnetism generated by neurons in the human brain. Yet, ...
Astronomy
Sep 2, 2025
3
202
By analyzing the data from the MeerKAT International Giga-Hertz Tiered Extragalactic Exploration (MIGHTEE-HI) survey, astronomers have discovered a new rotating galaxy filament. The newfound filament is about 5.5 million ...
Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, the thread could contain some of the universe's 'missing' matter, addressing a decades-long mystery.
Astronomy
Jun 19, 2025
0
261
The largest sample of galaxy groups ever detected has been presented by a team of international astronomers using data from the James Webb Space Telescope (JWST) in an area of the sky called COSMOS Web. The study marks a ...
Astronomy
Apr 29, 2025
0
849
On 19 March 2025, the European Space Agency's Euclid mission releases its first batch of survey data, including a preview of its deep fields. Here, hundreds of thousands of galaxies in different shapes and sizes take center ...
Astronomy
Mar 22, 2025
0
172
Gravitational lensing often evokes images of a cosmic funhouse mirror: duplicated galaxies, dramatic arcs and distorted shapes. But the web-like, large-scale structure throughout the universe also bends light in a weaker, ...
Astronomy
Mar 13, 2025
0
96
