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Essay/
History of science
Curving the Universe

A century ago, a team of scientists chased the arc of starlight across a total eclipse to prove Einstein right on relativity

Matthew Stanley

Essay/
Animals and humans
Green-eyed pets

Commonsense tells us that both dogs and cats experience jealousy. Are we being anthropomorphic or can we know for sure?

Paul Thagard

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Essay/
Mental health
The red thread of obsession

Evolved human capacities for vigilance and worry are both exacerbated and rewarded by the intense pressure of modern life

Elizabeth Svoboda

Essay/
History
Muslims of early America

Muslims came to America more than a century before Protestants, and in great numbers. How was their history forgotten?

Sam Haselby

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Essay/
Animals and humans
Eating someone

Farmed animals have personalities, smarts, even a sense of agency. Why then do we saddle them with lives of utter despair?

Lori Marino

Essay/
Mood and emotion
Against cheerfulness

Practising the Greek virtues of wisdom and courage is one thing. But being cheerful the American way borders on psychosis

Mariana Alessandri

Essay/
History of ideas
A revolution in time

Once local and irregular, time-keeping became universal and linear in 311 BCE. History would never be the same again

Paul J Kosmin

Essay/
Thinkers and theories
Susan Sontag was a monster

She took things too seriously. She was difficult and unyielding. That’s why Susan Sontag’s work matters so much even now

Lauren Elkin

Essay/
Earth science and climate
Flash!

It ignited life on Earth, propelled evolution, and now signals climate change. Yet what sparks lightning remains a mystery

Sidney Perkowitz

Essay/
Neuroscience
Brain, heal thyself

Neurofeedback can put thoughts in your head and help you conquer phobias – even when you’re unaware of what it’s doing

Sara Kimmich

Essay/
History of science
Natural philosophy redux

The great split between science and philosophy must be repaired. Only then can we answer the urgent, fundamental problems

Nicholas Maxwell

Essay/
Family life
When breast isn’t best

New parents face intense moral pressure from every quarter to breastfeed their babies. But sometimes bottle is better

Laura Frances Callahan