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Physicists Take the Imaginary Numbers Out of Quantum Mechanics
Quantum mechanics has at last been formulated exclusively with real numbers, bringing a mathematical puzzle at the heart of the theory into a new era of inquiry.
Carlo Rovelli’s Radical Perspective on Reality
The theoretical physicist and best-selling author finds inspiration in politics and philosophy for rethinking space and time.
How Soon Will the Seas Rise?
The uniquely vulnerable West Antarctic Ice Sheet holds enough water to raise global sea levels by 5 meters. But when that will happen — and how fast — is anything but settled.
Genes Have Harnessed Physics to Help Grow Living Things
The same pulling force that causes “tears” in a glass of wine also shapes embryos. It’s another example of how genes exploit mechanical forces for growth and development.
A Thermometer for Measuring Quantumness
“Anomalous” heat flow, which at first appears to violate the second law of thermodynamics, gives physicists a way to detect quantum entanglement without destroying it.
The Quantum Mechanics of Greenhouse Gases
Earth’s radiation can send some molecules spinning or vibrating, which is what makes them greenhouse gases. This infographic explains how relatively few heat-trapping molecules can have a planetary effect.
How Climate Scientists Saw the Future Before It Arrived
Over the past 60 years, scientists have largely succeeded in building a computer model of Earth to see what the future holds. One of the most ambitious projects humankind has ever undertaken has now reached a critical moment.
Why Is Venus Hell and Earth an Eden?
A team of scientists has investigated how Earth’s twin became so inhospitable, and whether the same will happen to our planet.
How Humanity Amplified Life’s Quest for Energy
A planetary perspective on the relationship between life and energy, and the emergence of a life form whose influence extends across the entire biosphere — presenting us with an awesome opportunity.