Imagine the universe as an enormous megacity, with galaxies as glowing metropolises scattered across a vast cosmic landscape. But what if these galaxies aren’t isolated islands? What if they’re connected by invisible structures like tunnels or subway lines linking city centers?
This idea may sound like science fiction, but it’s rooted in modern astrophysics. Galaxies are not randomly scattered; instead, they form part of the cosmic web – a vast network made up of dark matter, gas, and galaxies that connect massive clusters across the universe.
The cosmic web is like an invisible subway system, guiding the flow of matter throughout the cosmos. Dark matter plays a crucial role in shaping these hidden pathways, forming gravitational highways along which galaxies can slowly migrate over billions of years.
Some astrophysicists propose that gravitational waves or wormholes might travel along these filaments, potentially enabling matter to move more efficiently than through the vast emptiness of the voids. While we’re far from riding these cosmic tracks from one galaxy to another, studying these phenomena could lead us to a deeper understanding of the universe’s structure.
The concept of the galactic subway is both poetic and profound, capturing the idea that the universe is an interconnected system. As we continue to decode its structure, we might develop technologies or theories that allow us to travel or communicate across galaxies not by brute force, but by flowing with the cosmic currents.
Source: https://vocal.media/futurism/could-galaxies-be-connected-by-hidden-pathways-like-a-galactic-subway