News
- Physics
Falling objects in orbit show Einstein was right — again
For more than two years, a pair of metal cylinders fell at the same rate in space, confirming the equivalence principle, a key tenet of general relativity.
- Life
Not all camouflage is equal. Here are prey animals’ best options
When prey masquerade as innocuous objects in the environment, they slow detection from predators by nearly 300 percent.
- Planetary Science
Passing through the Milky Way’s arms may have helped form Earth’s solid ground
Barrages of comets stirred up by the early solar system’s journey around the center of the galaxy could explain the timing of ancient rock formation.
- Animals
Need to keep cockatoos out of your trash? Try bricks, sticks or shoes
In Sydney, humans may be in an escalating arms race with cockatoos. People are trying new tools to keep the pesky parrots out of their trash.
- Genetics
Can’t comb your kid’s hair? This gene may be to blame
Scientists linked variants of one hair shaft gene to most of the uncombable hair syndrome cases they tested.
- Chemistry
Why once-gold ceilings in Spain’s Alhambra palace have purple stains
Moisture infiltrated flawed gilding at the iconic palace, leading to corrosion that deposited gold nanoparticles of the right size to appear purple.
- Animals
DNA reveals donkeys were domesticated 7,000 years ago in East Africa
When and where donkeys were domesticated has been a long-standing mystery. DNA now reveals they were tamed much earlier than horses.
- Neuroscience
An AI can decode speech from brain activity with surprising accuracy
Developed by Facebook’s parent company, Meta, the AI could eventually be used to help people who can’t communicate through speech, typing or gestures.
- Paleontology
Living fast may have helped mammals like ‘ManBearPig’ dominate
Staying in the womb for a while but being born ready to rock may have helped post-dinosaur mammals take over the planet.
- Anthropology
The oldest known surgical amputation occurred 31,000 years ago
A young adult on the island of Borneo survived a lower left leg removal thanks to medically savvy rainforest surgeons.
- Plants
The worldwide water-lifting power of plants is enormous
The energy used per year by the world’s plants to lift sap rivals the amount of energy generated by all hydroelectric dams, a new study suggests.
- Archaeology
Indigenous Americans ruled democratically long before the U.S. did
Oklahoma’s Muscogee people, among others, promoted rule by the people long before the U.S. Constitution was written.
