Scientifc America

A cybersecurity expert explains how we might learn to trust our phones again

A machine-learning algorithm predicts that more than half of the thousands of species whose conservation status has yet to be assessed are probably in danger of disappearing for good

Members of the public are helping professional astronomers identify nascent planetary systems

Learning from past failures in the development of staph vaccines may inform how other vaccines for common bugs should be developed

The Supreme Court decision to overturn Roe v. Wade means that prenatal advice to patients can suffer and that counselors can face lawsuits and criminal charges

Although modest in scope, a NASA research project reflects shifting attitudes toward the formerly taboo subject of UFOs

Particles of sea salt in the air could stop clouds from charging up for a lightning strike

A study to counter the lack of evidence for handwriting analysis shows it is effective if an examiner has the right training

Over two years, a machine-learning program warned thousands of health care providers about patients at high risk of sepsis, allowing them to begin treatments nearly two hours sooner

A new stick-on ultrasound patch can record the activity of hearts, lungs and other organs for 48 hours at a time

A smallpox antiviral that’s effective against monkeypox is tied up in red tape, and gay-health advocates are pushing to make it easier to access

A new disposable battery is made of paper and other sustainable materials and is activated with a few drops of water

A recent lawsuit claims a chemical called titanium dioxide, used in Skittles candies, harms people. It’s hard to find strong evidence for that, however

Long considered trivial, the effects of rocket launches and reentering space debris on global warming and ozone loss could soon become too large to ignore

Protons, muons, neutrinos and other particles are moving beyond the realm of physics to help in a myriad of ways

Small marine critters ferry around seaweed sex cells, the first recorded example of “pollination” in algae

Seismology has been a long-overlooked tool in planetary exploration, but the success of NASA’s InSight lander has reignited the field

Organisms on Earth produce a wide array of durable “biofluorescent” materials. If those on other planets do, too, the Compact Color Biofinder should be able to detect them

Protein-packed diets cause add excess nitrogen to the environment through urine, rivaling pollution from agricultural fertilizers

Earlier action by the World Health Organization and Western countries could have helped control monkeypox in Africa