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When Our Gaze Is a Physical Force

Research documents a strange illusion

The Problem of 'Long Haul' COVID

More and more patients are dealing with major symptoms that linger for months

Race Riot Site from 1908 Could Become a National Park

The aftermath of the Springfield, Ill., rampage led, in part, to the NAACP

Exotic Animal Cafes Featuring Otters, Lizards and Owls Raise Alarms

The business of these cafés is growing, which could boost the illegal wildlife trade and have negative implications for wild animal populations

We Need a Paris Agreement for Plastics

They’re flowing into the natural environment every day at an unprecedented rate

Explosive Charges Protect Roads and Ski Areas

Controlled avalanches are a major safety effort during a year of outdoor activities

A Breakdown of Beavers

Environmental journalist Ben Goldfarb talks about his book Eager: The Surprising, Secret Life of Beavers and Why They Matter.

In Case You Missed It

Top news from around the world

Story of Mammoth Survival Is in the Soil

Ancient DNA preserved in soil may rewrite what we thought about the Ice Age

Ancient Galaxy Clusters Offer Clues about the Early Universe

Astronomers can’t understand how distant galaxies grew so big so fast

Readers Respond to the September 2020 Issue

Letters to the editor from the September 2020 issue of Scientific American

A Complete Guide to Birds, the Reason We Dream and Other New Science Books

Recommendations from the editors of Scientific American

A Federal Law That Protects Competition but Permits Hate and Harassment Online Must Be Revised

Fixing a flawed Internet free speech regulation requires input from more than just tech giants such as Facebook and Twitter

Earth Is on Fire

Our planet is burning, both literally and figuratively, because of climate change—and COVID is no excuse to ignore it

Martian Satellite Photos Show Dynamic Planet

The Mars Reconnaissance Orbiter celebrated its 15th year circling Mars

Mountain Water Supply to Two Billion People Could Change

Data about Earth’s 78 most important mountaintops foretell changes in the amount and timing of snowmelt

Towering Sequoias Are Even Bigger Than Thought, Laser Scans Suggest

Laser light reveals the structure of the planet’s tallest trees

Queen Bee Sperm Storage Holds Clues to Colony Collapse

Analyzing fluid from queen bees’ specialized sperm sacs can expose stressors