Astronomy
The Evolution of the Intergalactic Medium: Filaments and Voids
Quick fact
The intergalactic medium is not uniform; it is arranged in a cosmic web of filaments and voids, and over 95% of the universe's ordinary matter resides in this diffuse gas, not inside stars and planets.
Why this is interesting
Imagine the universe as a giant, intricate web of gas, with massive walls and vast empty spaces. But how did this structure form, and why does it matter for the galaxies we see today?