From our virtual Thanksgiving table to yours
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Author Archives: scientific american
Echolocation Drains Bats Traveling through Noise
Bats expend more energy navigating in loud conditions
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Duckbill Dino Odyssey Ended in Africa
A duckbill dinosaur jawbone found in Morocco means that dinosaurs crossed a large body of water to reach Africa.
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China’s Chang’e-5 Mission Launches to Collect Lunar Samples
After a 44-year hiatus, humans are on the verge of returning fresh material from the moon
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How Misinformation Spreads–and Why We Trust It
The most effective misinformation starts with seeds of truth
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Biden Names John Kerry Climate Envoy
The appointment telegraphs the incoming administration considers climate change a key foreign policy concern
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COVID Models Show How to Avoid Future Lockdowns
The models could help inform policy on everything from mask mandates to social distancing
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Why Social Media Became the Perfect Incubator for Hoaxes and Misinformation
Data scientists are studying how information spreading online influences our social dynamics and what, if anything, can be done to smooth polarization
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The Surprising Mental Toll of COVID
The rise in depression and anxiety is even worse than expected, especially among young adults
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Scale Up Tutoring to Combat COVID Learning Loss for Disadvantaged Students
Studies show impressive gains after even online tutoring
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The Scientific Benefits of Social Distancing
Avoiding too much direct contact with colleagues can lead to more independent thinking
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Severe Wildfires Raise the Chance for Future Monstrous Blazes
The complete torching of trees allows dense, low vegetation to sprout, creating a new hotbed for more extreme fire
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Methane Hits Record High in Atmosphere as Fossil Fuel Companies Diverge
Oil and gas producers in Europe commit to reporting emissions but major U.S. firms do not
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Bumblebees’ Self-Image Gets Them through Tight Spots
Sridhar Ravi was outdoors with his colleagues on a summer day in Germany when a group of bumblebees grabbed his attention. As the bees made their way from flower to flower, they skillfully flew…
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People Drawn to Conspiracy Theories Share a Cluster of Psychological Features
Baseless theories threaten our safety and democracy. It turns out that specific emotions make people prone to such thinking
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To Understand How Science Denial Works, Look to History
The same tactics used to cast doubt on the dangers of smoking and climate change are now being used to downplay COVID
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Harsh Droughts Can Actually Start Over Oceans
Similar to hurricanes, they can hit land, but their slow pace could improve drought forecasts
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Yoga May Bolster the Brain Regions Most Affected by Aging
Brain-scan studies hint that the ancient practice may benefit areas associated with memory, emotion and thinking
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Distrust Authorities, Including Me
The presidential election and pandemic have highlighted the fallibility of experts, but that doesn’t mean we should dismiss them all
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We Need a National Institute of Climate Change and Health
The NIH has a budget of over $40 billion—but spends a measly $9 million on this looming public health emergency
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The Noble Gases
Science in meter and verse
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If It Smells like Dirt, Fire Ants Are Interested
For these swarming, stinging insects it’s the aroma of home sweet home
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Readers Respond to the July 2020 Issue
Letters to the editor from the July 2020 issue of Scientific American
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Clues to Puebloan History Drip Away in Melting Ice Caves
Charcoal dating back nearly 2,000 years show the ancestral Puebloans used the ice for drinking water during droughts
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Arecibo Observatory to Close Its Giant Eye on the Sky
After suffering severe damage from broken cables that cannot be readily repaired, the observatory’s enormous radio telescope is now slated for “controlled decommissioning”
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See a Male Seahorse Give Birth
Unlike almost all other animal species, it is male seahorses who become pregnant and birth young
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Doing the Touchy Math on Who Should Get a COVID Vaccine First
Mathematicians model pandemic scenarios by plugging thorny ethical and logistical issues into calculations
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Storm-Surfing Parasites Spread Widely
Major hurricanes scramble marine-creature populations
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Deep Frozen Arctic Microbes Are Waking Up
Thawing permafrost is releasing microorganisms, with consequences that are still largely unknown
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New Scientist-Candidates for U.S. Congress Fared Worse Than Expected in 2020
Even with big health issues in the headlines, most of these challengers lost, though advocates hope the races gave science a higher policy profile
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Information Overload Helps Fake News Spread, and Social Media Knows It
Understanding how algorithm manipulators exploit our cognitive vulnerabilities empowers us to fight back
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Ice Drownings Expected to Rise as Winters Warm
Rising temperatures could put cold-climate pastimes like skating on thin ice—literally
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Legendary Arecibo Telescope Will Close Forever, And Scientists Are Reeling
New satellite image reveals the damage that shut down the facility, ending an era in astronomical observation
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Evaluating COVID Risk on Planes, Trains and Automobiles
Stay safer on different forms of transportation
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Slow Gains against the Virus
Multiple and complex underlying factors determine why some people get terribly sick from COVID-19
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We Sometimes Missed the Boat–and Bridge
Einstein wrote for this publication, as did some non-Einsteins
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The COVID Cold Chain: How a Vaccine Will Get to You
A vaccine logistics expert explains how millions of frozen vials will be widely distributed
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Your Tears Might Save Your Life Someday
They could ultimately be used to find diseases the way blood tests do now—but cheaper and more easily
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New Space Weather Network Extends over Africa
Sensors will monitor solar emissions that threaten GPS and radio signals
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Early Mammals Had Social Lives, Too
Chipmunk-like animals that lived among the dinos appear to have been social creatures, which suggests that sociality arose in mammals earlier than scientists thought. Christopher Intagliata…
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Prospects for Life on Venus Fade–But Aren’t Dead Yet
Debate continues over controversial report of phosphine in the planet’s atmosphere, as researchers re-analyze data and find a fainter signal
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More Frequent, Severe Climate-Fueled Disasters Exacerbate Humanitarian Crises
People have little time to recover when extreme events happen back-to-back, the International Federation of Red Cross and Red Crescent Societies warns
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Mysteries of COVID Smell Loss Finally Yield Some Answers
Explanations begin to arise at the molecular level for this vexing but commonplace symptom
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What Does a Guilty Brain Look Like?
Behavioral biomarkers and the new science of neuroprediction
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Otters Show How Predators Can Blunt Climate Damage
Understanding the full impacts of warming requires factoring in the complexity of ecosystems
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For Billion-Dollar COVID Vaccines, Basic Government-Funded Science Laid the Groundwork
Much of the pioneering work on mRNA vaccines was done with government money, though drugmakers could walk away with big profits
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With GOP Support, Arizona Mandates Cleaner Energy
The falling costs of renewables has helped shift political winds around power generation
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NASA Celebrates Crew-1 Arrival at Space Station
SpaceX’s first 4-astronaut mission for the agency is a milestone in human spaceflight
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Strange Supernovae Upend Expectations
Most stars die in fairly predictable ways, but astronomers have discovered a growing catalog of unusual stellar deaths that challenge the traditional picture
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Sharing the Human Side of Science
Exploding stars, Top 10 Emerging Technologies, hand transplants, and more in the December issue of Scientific American
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