Astronomy
July/August 2024: Three New Books, Reviewed
A riveting quest to map the world; quantum physics in a four-act drama; climate solutions that show what we’re doing right
Teens’ Mental Health May Improve When They Help Others
Volunteering in community programs can reduce youth depression and anxiety, researchers are beginning to learn
Advanced Meditation Alters Consciousness and Our Basic Sense of Self
An emerging science of advanced meditation could transform mental health and our understanding of consciousness
Readers Respond to the March 2024 Issue
Letters to the editors for the March 2024 issue of Scientific American
Satellite Mega Constellations Could Jeopardize Ozone-Hole Recovery
Pollution from skyrocketing numbers of satellites burning up in Earth’s atmosphere could threaten our planet’s protective ozone layer
How the Math of Cracks Can Make Planes, Bridges and Dams Safer
Better predictions of how cracks grow can make machines and structures more reliable
Dazzling New Milky Way Map Shows How Magnetism Shapes Our Galaxy
An image of interstellar dust moving through the Milky Way’s magnetic field may help scientists learn more about the origin of galaxies
Book Review: Why People Collect Trees and You Should, Too
A new book about tree collectors shows how arboreal curation is an outlet for art and activism
Contributors to Scientific American’s July/August 2024 Issue
Writers, artists, photographers and researchers share the stories behind the stories
Mangrove Trees Are on the Move, Taking the Tropics with Them
As the climate warms, mangroves are migrating farther poleward, transforming the coast as they go
What Vitamins and Minerals Really Do in Your Body
Humans need around 30 vitamins and minerals to keep our bodies functioning
July/August 2024: Science History from 50, 100 and 150 Years Ago
Death rays; the sawfly’s barf defense
Book Review: Are The Wild Animals in Your Backyard a Nuisance or Neighbors?
Call off the pest control and learn to live with wildlife
New Understandings of Food, Fat, Fitness and Evolution
Quantum observers, migrating mangroves, the deep history of an asteroid and understanding appetite in this issue of Scientific American
The universe is built a lot like a giant brain – so is it conscious?
Sensory Secrets of Penis and Clitoris Unlocked after More Than 150 Years
Mysterious nerve structures called Krause corpuscles respond to specific low-frequency vibrations, scientists finally confirm