Diversity and inclusion Opinion and reviews A stance against forced retirement Paul Ewart says there is little evidence that forcing active physicists to retire “frees up” positions
Personalities Opinion and reviews The vagabond physicist Andrew Robinson reviews Einstein in Bohemia by Michael Gordin
Business and innovation Opinion and reviews Climate change is a ‘Pascal’s wager’: so how will you act? Businesses must take action on climate change, which is why – says James McKenzie – it’s an example of a “Pascal’s wager”
Telescopes and space missions Opinion and reviews Worlds beyond Earth The Hayden Planetarium’s new space show has high production values and a strikingly earthy flavour, finds Robert P Crease
Art and science Opinion and reviews Death by prime numbers David Appell reviews Prime Suspects: the Anatomy of Integers and Permutations by Andrew Granville, Jennifer Granville and Robert J Lewis
Business and innovation Opinion and reviews The secret to flying carbon-free James McKenzie wonders how realistic it will be to de-carbonize air travel
Philosophy, sociology and religion Opinion and reviews More questions than answers Qamar Scott reviews Extraterrestrial Languages by Daniel Oberhaus
Modelling and simulation Opinion and reviews An uncertain growth Susan Curtis reviews Growth: From Microorganisms to Megacities by Vaclav Smil
Everyday science Opinion and reviews Why do people still believe in conspiracy theories? Robert P Crease wonders why so many people still get fooled by conspiracy theories
History Opinion and reviews A critical mass of secrets Margaret Harris reviews Trinity: the Treachery and Pursuit of the Most Dangerous Spy in History by Frank Close