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Science / Mind & Body

Axolotls can regrow lost limbs, again and again, making them appealing to scientists who want to understand regeneration.

Some Salamanders Can Regrow Lost Body Parts. Could Humans One Day Do the Same?

In recent decades, the idea of human regeneration has evolved from an ‘if’ to a ‘when’

Each year, people need to get a new flu shot to protect against the latest version of the influenza virus, which rapidly mutates. A universal flu vaccine could protect people for life.

As the World Faces One of the Worst Flu Outbreaks in Decades, Scientists Eye a Universal Vaccine

A universal flu vaccine would eliminate the need for seasonal shots and defend against the next major outbreak

A "living machine" containing frog stem cells in a new configuration designed by a computer algorithm. Parts shown in green are made up of frog skin cells, while parts in red are frog heart cells.

Scientists Assemble Frog Stem Cells Into First ‘Living Machines’

The so-called ‘xenobots’ could replace traditional metal or plastic robots without polluting the planet, but they raise ethical questions

These are ten of the biggest strides made by scientists in the last ten years.

The Top Ten Scientific Discoveries of the Decade

Breakthroughs include measuring the true nature of the universe, finding new species of human ancestors, and unlocking new ways to fight disease

Microneedle patches, like this one that measures about a centimeter across, could be used to deliver nanoparticles when pressed to the skin for two minutes.

This Spiky Patch Could Invisibly Record Vaccination History Under Skin

But the technology raise several ethical concerns that could stymie its progress

Several Homo erectus skulls were recently identified as the youngest known fossils of the species, some 108,000 to 117,000 years old. These fossil replicas are housed at the University of Iowa.

Fossils From Some of the Last Homo Erectus Hint at the End of the Long-Lived Species

Homo erectus, one of the first species of the Homo genus, survived for longer than any other close human ancestor

A 5,700-year-old piece of birch tar, chewed as gum, contains the genome, mouth microbes, and even dietary information about its former chewer.

Human Genome Recovered From 5,700-Year-Old Chewing Gum

The piece of Birch tar, found in Denmark, also contained the mouth microbes of its ancient chewer, as well as remnants of food to reveal what she ate

A colorized scanning electron microscope image of a neuron (orange) interfaced with the nanowire array.

Miniature Brains Recently Sent Out Brain Waves for the First Time

The brain organoids, about the size of a pea, can be used to better understand neurological diseases

A picture of Friedrich Miescher hangs behind a test tube with isolated nucleic acid from salmon sperm from the original holdings in the museum of the University of Tübingen.

Visit the German Castle Where DNA Was First Discovered

A museum pays tribute to Friedrich Miescher, the Swiss chemist who isolated nucleic acid in the castle’s former lab 150 years ago

A human skull on display with earlier ancestor skulls and a picture of a Neanderthal man at the Museum of Natural History of Toulouse.

Human Ancestors May Have Evolved the Physical Ability to Speak More Than 25 Million Years Ago

Though when primates developed the cognitive abilities for language remains a mystery

The Ten Best Science Books of 2019

New titles explore the workings of the human body, the lives of animals big and small, the past and future of planet earth and how it’s all connected

Red blood cells imaged by a scanning electron microscope.

Harmful Bacteria Masquerade as Red Blood Cells to Evade the Immune System

Studying the stealthy strategy could help researchers develop new treatments for group A strep infections, which kill more than 500,000 people each year

The researchers turned living human skin cells into a liquid "bio ink."

Scientists 3-D Print Skin That Develops Working Blood Vessels

A promising new technique could lead to lasting skin grafts after burns or other injuries

The Human Microbiome Project defined nine sites in the mouth. Each provides a habitat for a distinct set of bacterial communities.

By Studying Mouth Bacteria, Scientists Hope to Learn the Secrets of Microbiomes

Communities of bacteria and other microbes in the human mouth can help researchers learn how these groups of organisms affect human health

Mark Prausnitz holds an experimental microneedle contraceptive skin patch. Designed to be self-administered by women for long-acting contraception, the patch could provide a new family planning option.

Will Microneedle Patches Be the Future of Birth Control?

Researchers are developing a new long-acting, self-administered device that delivers hormones beneath the skin’s surface

By genetically modifying a patient's own immune cells to target and kill cancer cells, CAR-T therapy offers a whole new way to fight cancer.

The Possibilities and Risks of Genetically Altering Immune Cells to Fight Cancer

Of the ten or so patients I’ve treated with CAR-T, over half developed strange neurologic side effects ranging from headaches to seizures

In Pursuit of Better Baby Formula

Replicating human milk is no easy feat—nor is separating the science from the hype

Unlike classic CRISPR-based editing, which fully cleaves DNA in two, prime editing starts with a cut to only one strand of the double helix.

A New Gene Editing Tool Could Make CRISPR More Precise

Prime editing offers a new way to make changes to DNA while avoiding some of the drawbacks and clunkiness of traditional CRISPR

Soldiers take a psychological test (the exact type of examination is unclear) in Camp Lee in Virginia in November 1917, the year the United States entered World War I and Woodworth first developed his test.

The Future of Mental Health

The First Personality Test Was Developed During World War I

Long before online quizzes and Myers-Briggs, Robert Woodworth’s “Psychoneurotic Inventory” tried to assess recruits’ susceptibility to shell shock

This image shows a preliminary portrait of a juvenile female Denisovan based on a skeletal profile reconstructed from ancient DNA.

Scientists Recreate the Face of a Denisovan Using DNA

By mapping gene expressions, researchers can determine some anatomical features of our distant hominin relatives

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