Scientific American.com
Sorry, Little Green Men: Alien Life Might Actually Be Purple
Purple may be a likely color for extraterrestrial organisms, research suggests
Early Humans Sheltered in This Lava Tube 10,000 Years Ago—And It’s Still in Use Today
Fossils and stone tools show that a cave in Saudi Arabia has been used as shelter by humans for millennia, up to the present day
Abortion Bans in Arizona and Florida Will Face Voters in November
The state supreme courts in Florida and Arizona both recently ruled that strict abortion bans could go into effect. But ballot measures may give voters a chance to weigh in
You Quit Ozempic or Wegovy. What Happens Next?
Many researchers think that Wegovy and Ozempic should be taken for life, but myriad factors can force people off the drugs
Anti-Trans Efforts Use Misinformation, Epistemological Violence and Gender Essentialism
Three types of misinformation are being used against transgender people: oversimplifying scientific knowledge, fabricating and misinterpreting research and promoting false equivalences
Could JWST Solve One of Cosmology's Greatest Mysteries?
The telescope's studies could help end a long-standing disagreement over the rate of cosmic expansion. But scientists say more measurements are needed
Human Brains May Be Getting Bigger
Brain size in one Massachusetts community has steadily increased since the 1930s, possibly explaining why dementia is trending lower nationwide
Why Seasonal Allergies Are So Miserable
Plants are just trying to reproduce; immune systems are just trying to keep us safe
How to See the Lunar Far Side Right Here on Earth
Perspective and subtle motion allows us to peek over the moon’s edge and into its far side
How Big a Threat Is Bird Flu?
Cows and at least one person in the U.S. have been sickened by avian influenza. We asked experts about the risk to humans.
FDA Recalls Heart Pumps Linked to Deaths and Injuries
Two medical devices that mechanically pump blood to the heart have caused hundreds of injuries and more than a dozen deaths
Deadly African Heat Wave Would Not Have Been Possible without Climate Change
Scientists say extreme temperatures that reached 119 degrees Fahrenheit and killed at least 100 people in parts of West Africa would only occur every 200 years in the absence of climate change
The Theoretical Physicist Who Worked with J. Robert Oppenheimer at the Dawn of the Nuclear Age
Melba Phillips co-authored a paper with J. Robert Oppenheimer in 1935 that proved important in the development of nuclear physics. Later she became an outspoken critic of nuclear weapons
This Nearly 50-Foot Snake Was One of the Largest to Slither the Earth
Fossilized vertebrae that were found in an Indian coal mine belonged to a gigantic and previously unknown snake species
Mathematicians Explain Why Some Lengths Can’t Be Measured
Can you assign a size to every object? The surprising answer is no
AI Report Shows ‘Startlingly Rapid’ Progress—And Ballooning Costs
A new report finds that AI matches or outperforms people at tasks such as competitive math and reading comprehension
SpaceX’s Starship Could Save NASA’s Beleaguered Mars Sample Return Mission
Facing budgetary pressure for its Mars Sample Return program, NASA has turned to private industry for ideas—perhaps with one specific company in mind
It’s Time to Act on Pilots’ Mental Health
Mental health recommendations for pilots and air traffic controllers bring new ideas to old problems; the FAA must decide what’s next
What Philosopher Ibn Sina Can Teach Us about AI
A philosopher who lived centuries before artificial intelligence might be able to help us understand the field's personhood questions
Hollywood Should Give Brain Science a Star Turn
Movies and TV shows frequently depict physical and biological sciences well, but often depict psychological and brain sciences poorly. Here’s why, and what we can do about it