Cosmological accretion shocks created during the formation of galaxy clusters are a ubiquitous phenomenon all around the universe. These shocks and their features are intimately related with the ...

On the scale of the entire observable Universe, it is no longer appropriate to use Newtonian theory to describe gravitational interactions. Instead, we need to use Einstein’s relativity in order to ...

New observational techniques could shed new light on how the universe works, and whether the rules of gravity work differently at the cosmological scale. Cosmologists have known since the 1930s that ...

The Universe on the largest scales exhibits a complex network of filaments, sheets and voids that together form the cosmic web. This web is generated by the gravitational growth of primordial density ...

In a study published in Monthly Notices of the Royal Astronomical Society (MNRAS), scientists from MIT, Harvard, and other ...

Researchers at MIT and partner institutions built Lumina, a simulation that tracks dark matter, gas, stars, and radiation ...

The MeerKLASS Collaboration reports their first measurement of the large-scale clustering of cosmic hydrogen, advancing a ...

The Universe we see around us, when interpreted within the context of Einstein’s theory of General Relativity, suggests the presence of a pervasive fluid of Dark Energy. This mysterious substance, ...

Large areas of the universe are occupied by empty spaces known as voids, vast areas stretching hundreds of millions of light-years and containing almost no luminous objects. As of the time of writing, ...