News
- Chemistry
How Benjamin Franklin fought money counterfeiters
Researchers are confirming some of the techniques that Benjamin Franklin and his associates used to help early American paper currency succeed.
- Health & Medicine
New Alzheimer’s drugs are coming. Here’s what you need to know
Several new drugs that target brain plaques slow mental decline in people with Alzheimer’s disease. But they are not for everyone, researchers caution.
- Health & Medicine
A new device can detect the coronavirus in the air in minutes
The detector can sense as a few as seven to 35 coronavirus particles per liter of air — about as sensitive as a PCR test but much quicker.
- Astronomy
Ryugu asteroid samples are sprinkled with stardust older than the solar system
Slivers of the asteroid appear to be from the fringes of the solar system and could reveal bits of the history of the sun and its planets.
- Physics
Mass has different definitions. The moon’s orbit confirms two are equivalent
Laser measurements of the moon’s orbit square with Newton’s third law of motion and Einstein’s theory of gravity.
- Climate
Last week was the hottest ever recorded — here’s why we keep smashing records
Global temperature records are being shattered as El Niño and climate change combine to push the Earth into uncharted territory, researchers say.
- Astronomy
Coronal rain has been seen splashing on the sun
New images of the solar corona, taken by the Solar Orbiter probe, reveal bright fireball effects and upwelling induced by falling plasma droplets.
- Earth
Wildfires aren’t going away. Here’s how smoke can affect your health
How does repeat exposure to wildfire smoke affect our health? Three experts weigh in on the massive air pollution fueled by Canada’s ongoing fires.
- Climate
Canada’s Crawford Lake could mark the beginning of the Anthropocene
The mud of a Canadian lake holds an extremely precise record of humans’ influence on Earth. But the Anthropocene isn’t an official geologic epoch yet.
- Materials Science
This ‘thermal cloak’ keeps spaces from getting either too hot or cold
A new thermal fabric prototype could help keep cars, buildings and other spaces a comfortable temperature during heat waves while reducing CO₂ emissions.
- Humans
Lauren Schroeder looks beyond natural selection to rethink human evolution
Paleoanthropologists studying the fossil record have long focused on natural selection, but other processes play a big role too.
- Ecosystems
This seagrass is taking over the Chesapeake Bay. That’s good and bad news
Higher water temperatures are wiping out eelgrass in the Chesapeake Bay and weedy widgeongrass is expanding. Here’s why that seagrass change matters.
