What We Are Reading Today: ‘Dark Matter’

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Updated 24 August 2025
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What We Are Reading Today: ‘Dark Matter’

Authors: David J.E. Marsh, David Ellis, and Viraf M. Mehta

This book provides an incisive, self-contained introduction to one of the most intriguing subjects in modern physics, presenting the evidence we have from astrophysics for the existence of dark matter, the theories for what it could be, and the cutting-edge experimental and observational methods for testing them.

It begins with a survey of the astrophysical phenomena, from rotation curves to lensing and cosmological structure formation.

The book explains the constraints on each theory, such as direct detection and indirect astrophysical limits.


What We Are Reading Today: Freedom from Fear by Alan Kahan

Updated 27 February 2026
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What We Are Reading Today: Freedom from Fear by Alan Kahan

“Freedom from Fear” offers a striking new account of the dominant political and social theory of our time: liberalism. In a pathbreaking reframing of the historical debate, Alan Kahan charts the development of Western liberalism from the late eighteenth century to the present. 

Examining key liberal thinkers and issues, Kahan shows how liberalism is both a response to fear and a source of hope: the search for a world in which no one need be afraid.

“Freedom from Fear” reveals how liberal arguments typically rely on three pillars: freedom, markets, and morals. 

But when liberals ignore one or more of these pillars, their arguments generally fail to persuade.