Astronomers have photographed a filament of the cosmic web linking galaxies at the universe’s edges for the first time. This discovery confirms key theories on dark matter and galaxy formation, revealing how primordial gas flows through space.

Proof of the Cosmic Web Connecting the Universe

Captured where two ancient quasars over 11 billion light-years away emit light revealing an invisible hydrogen filament, this 3-million-light-year “gas highway” forms a vital cosmic web component acting as the universe’s skeleton.

Astronomers used the MUSE instrument on Chile’s Very Large Telescope, analyzing each pixel’s spectrum to distinguish hydrogen emission from cosmic noise after over 100 hours of observation. This confirmed gas channeling through the filament to galaxies, matching cold dark matter theory predictions.​

First Visual Confirmation of Cosmological Models

Cosmologists long proposed dark matter organizes the universe as an invisible scaffold for ordinary matter, widely accepted but lacking direct observation until the Max Planck Institute and Milano-Bicocca collaboration.

The image matches prior supercomputer simulations of gravity shaping large-scale structure, gathering dark matter into filaments and nodes while visible gas flows to centers forming stars. Brightness and shape fidelity validates cold dark matter physics, challenging alternatives.​

Cosmic Web as Vital Matter Source for Galaxies

Filaments actively channel fresh hydrogen-rich gas to galaxies, essential for new stars and sustaining activity; without it, galaxies would exhaust reserves and become passive red systems.

The image identifies a sharp boundary between intergalactic and galaxy-trapped gas, key to explaining active versus quiescent galaxies and predicting evolution.

Researchers plan to map more filaments for a 3D cosmic web view, refining universe understanding; this first direct image unveils the hidden cosmos skeleton.​

Reference:

• Nature Astronomy/High-definition imaging of a filamentary connection between a close quasar pair at z = 3. Link

Esta entrada también está disponible en: Español