Galaxies are not scattered randomly across the universe. They gather together not only into clusters, but into vast interconnected filamentary structures with gigantic barren voids in between. This ...

Like rivers feeding oceans, streams of gas nourish galaxies throughout the cosmos. But these streams, which make up a part of the so-called cosmic web, are very faint and hard to see. While ...

Strands of gas, dust and stars stretch through the cosmos and embed galaxy clusters, influencing their evolution. When you purchase through links on our site, we may earn an affiliate commission. Here ...