The observable universe is a ball-shaped region of the universe comprising all matter that can be observed from Earth or its space-based telescopes and exploratory probes at the present time, because ...

Cosmologists have recently announced the discovery of the largest and most massive structure discovered to date in the ...

The structure and composition of the observable universe, within the framework of the theory, depend on how microcells proliferated, and how their energies evolved, during inflation. Each macrocell ...

This is just a small part of the universe—less than 1% of the entire observable universe—but it is our galactic neighborhood. And it is good to know the geography of your neighborhood.

The structure and composition of the observable universe, within the framework of the theory, depend on how microcells proliferated, and how their energies evolved, during inflation. Each macrocell ...

Astronomers have used a continent-sized radio telescope to find the largest black hole jet ever observed in the early ...

Scientists have identified what might be the largest structure ever found in the universe —a massive web of galaxy clusters ...

Astronomers have identified what could be the largest structure ever observed in the known universe—a vast network of galaxy clusters and superclusters containing an astonishing 200 quadrillion solar ...

They found that these structures together contain roughly 45 percent of all galaxy clusters, 30 percent of all galaxies, and 25 percent of matter in the observable universe. However, even larger ...