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Climate Change’s Fingerprints Came Early, a Thought Experiment Reveals

Workers Have Died in Extreme Heat as OSHA Has Debated Protections

Human Gut Bacteria Can Gather Up PFAS ‘Forever Chemicals’

Can Life Survive the Death of the Sun?

Proof That Adult Brains Make New Neurons Settles Scientific Controversy

First Human Genome from Ancient Egypt Sequenced from 4,800-Year-Old Teeth

How Massive Medicaid Cuts Will Harm People’s Health

New Interstellar Object Comet 3I/ATLAS—What We Know So Far as It Zips through the Solar System

Republicans’ One Big Beautiful Bill Act Will Raise U.S. Climate Emissions

Record-Breaking Results Bring Fusion Power Closer to Reality

How Trump’s Federal Funding Cuts Are Hurting Early-Career Researchers and American Health

AI Could Help Save Patients from Extreme Heat

Astronomers Found the Most Self-Destructive Planet in the Sky

China’s Tianwen-3 Mission Could Beat the U.S. in the Race to Grab Mars Rocks

For Dolphins, Echolocation May Be More Like ‘Touching’ Than ‘Seeing’

Could AI Make Drone Shows Less Technically Challenging?

4 Nonfiction Books Scientific American Recommended In June

U.S. National Climate Assessments Website Goes Dark

Could China’s New Ozempic-like Drugs Beat Out Current Weight-Loss Medications?

Russia’s Space Program Is Another Casualty of the War in Ukraine

See Earth’s Forests as Never Before in Biomass Satellite’s First Images

Rubin Observatory Data Flood Will Let the Universe Alert Astronomers 10 Million Times a Night

Summer Learning Loss Happens, but Kids Quickly Recover

World’s Oldest Rocks Confirmed in Canada

Cells Can ‘Hear’ Sounds—And Respond Genetically

Why Did the Company behind the Dakota Access Pipeline Sue Greenpeace?

Weather Forecasters Lose Crucial Hurricane Detection Microwave Satellite Data

Solar-Powered Slug Steals Chloroplasts and Stores Them for Emergency Food

Meditation’s Benefits Stretch Beyond the Person Who Meditates

New Proof Dramatically Compresses Space Needed for Computation

Could the Solar System Lose a Planet to a Passing Star?

Creating Bird Flu Vaccines for Humans at a Biosecure Laboratory

Does Using ChatGPT Really Change Your Brain Activity?

These Actions Could Make Vaccines Safer. But RFK, Jr., Isn’t Pursuing Them

A Gigantic Megacomet Is Erupting as It Zooms through the Solar System

Heat Domes Are Hotter and Lingering Longer—Because of the Arctic

Math Enthusiasts Unite to Have Rover Calculate Pi on the Moon

What Is Thimerosal? Why Most Vaccines Don’t Contain Mercury Anymore

Archaeologists Recreate Prehistoric Tools to Build a Canoe for 140-Mile Ocean Voyage

Use Summer Break to Build Closer Bonds with Your Children

Trump Administration Ousts National Science Foundation from Headquarters Building

Sexual Synesthesia Paints the World in Color at the Moment of Orgasm

When Do Babies Become Conscious?

A Sodom and Gomorrah Story Shows Scientific Facts Aren’t Settled by Public Opinion

See Vaccine Recommendations Backed by Science in These Handy Charts

How Bird Flu Went from Devastating Poultry Farms to Infecting Dairy Herds

How Perfectionism Hurts Parents and Their Kids

How to Keep Your Home Cool in Extreme Heat

Did the U.S. Really Destroy Iran’s Nuclear Program?

Dark Matter ‘Droplets’ Could Solve Multiple Cosmic Mysteries