When you buy through links on our articles, Future and its syndication partners may earn a commission. This composite image shows the distribution of dark matter, galaxies, and hot gas in the core of ...

Black holes are considered cosmic gluttons, from which not even light can escape. That is also why the images of black holes ...

Researchers are using black hole “shadow” images to test whether Einstein’s relativity remains unshakable. With ...

One of the weirdest theories in cosmology is the holographic principle, the idea that our universe is a three-dimensional image projected off a two-dimensional surface — the idea that, yes, we are ...

How much light has been emitted by all galaxies since the cosmos began? After all, almost every photon (particle of light) from ultraviolet to far-infrared wavelengths ever radiated by all galaxies ...

In the beginning, the world was empty and cold. Prior to the Big Bang — yes, before the Big Bang — the universe underwent a breathtaking cosmic expansion, doubling in size at least 80 times in a ...

In a hypertorus model of the Universe, motion in a straight line will return you to your original location, even in an uncurved (flat) spacetime. This multiply connected topology might be able to be ...

Where does the Universe end? Or, to put it differently, does the Universe have an edge? When cosmologists say that the Universe is expanding, people tend to think of an exploding bomb. They see ...

Dark matter could be made from tiny black holes formed when so-called "dark baryons" collapse, scientists suggest. Or, alternatively, dark matter could be a type of particle created by a form of ...

Radiation from all galaxies that ever existed suffuses the universe with a diffuse extragalactic background light (EBL). Measuring the EBL is as fundamental to cosmology as measuring heat from the Big ...