What We Are Reading Today: The Cosmic Web — Mysterious Architecture of the Universe

Updated 17 July 2018
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What We Are Reading Today: The Cosmic Web — Mysterious Architecture of the Universe

J. Richard Gott was among the first cosmologists to propose that the structure of our universe is like a sponge made up of clusters of galaxies intricately connected by filaments of galaxies — a magnificent structure now called the “cosmic web” and mapped extensively by teams of astronomers. 

The Cosmic Web begins with modern pioneers of extragalactic astronomy, such as Edwin Hubble and Fritz Zwicky, says a review on the Princeton University Press website. 

It goes on to describe how, during the Cold War, the American school of cosmology favored a model of the universe where galaxies resided in isolated clusters, whereas the Soviet school favored a honeycomb pattern of galaxies punctuated by giant, isolated voids. 

Gott tells the stories of how his own path to a solution began with a high-school science project when he was 18, and how he and astronomer Mario Jurič measured the Sloan Great Wall of Galaxies, a filament of galaxies that, at 1.37 billion light-years in length, is one of the largest structures in the universe.


What We Are Reading Today: ‘An Introduction to General Relativity and Cosmology’ by Steven A. Balbus

Updated 28 January 2026
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What We Are Reading Today: ‘An Introduction to General Relativity and Cosmology’ by Steven A. Balbus

General relativity has entered a new phase of its development as technical advances have led to the direct detection of gravitational radiation from the merging of single pairs of stellar-sized black holes.

The exquisite sensitivity of pulsar signal timing measurements has also been exploited to reveal the presence of a background of gravitational waves, most likely arising from the mergers of supermassive black holes thought to be present at the center of most galaxies.

This book demonstrates how general relativity is central to understanding these and other observations.