News
- Health & Medicine
People fully vaccinated against COVID-19 can socialize without masks, CDC says
Two weeks after their final COVID-19 shot, people can visit other vaccinated people indoors without masks or physical distancing.
- Animals
A sea slug’s detached head can crawl around and grow a whole new body
Chopped-up planarians regrow whole bodies from bits and pieces. But a sea slug head can regrow fancier organs such as hearts.
- Physics
A magnetic trap captures elusive ultracold plasma
Pinning plasma within a set of magnetic fields offers physicists a new way to study clean energy, space weather and the inner workings of stars.
- Earth
To understand how ‘night-shining’ clouds form, scientists made one themselves
A rocket, a bathtub’s worth of water and a high-altitude explosion reveal how water vapor cools the air to form shiny ice-crystal clouds.
- Astronomy
Andromeda’s and the Milky Way’s black holes will collide. Here’s how it may play out
Supermassive black holes in the Milky Way and Andromeda will engulf each other less than 17 million years after the galaxies merge, simulations show.
- Health & Medicine
COVID-19 has exacerbated a troubling U.S. health trend: premature deaths
The pandemic played into already rising death rates from obesity, drugs, alcohol and suicide.
- Health & Medicine
Most pro athletes who got COVID-19 didn’t develop heart inflammation
Few professional athletes developed heart inflammation after a bout of COVID-19, but how the findings relate to the general public isn’t clear.
- Neuroscience
Catnip repels insects. Scientists may have finally found out how
The plant deters mosquitoes and fruit flies by triggering a chemical receptor that, in other animals, senses pain and itch.
- Animals
Female green tree frogs have noise-canceling lungs that help them hear mates
When inflated, female green tree frog lungs resonate in a way that reduces sensitivity to the sounds of other species.
- Health & Medicine
People who have had COVID-19 might need only one shot of a coronavirus vaccine
Antibody levels in health care workers who had COVID-19 and got vaccinated were more than 500 times higher than those vaccinated but never infected.
- Materials Science
This soft robot withstands crushing pressures at the ocean’s greatest depths
An autonomous robot that mimics the adaptations of deep-sea snailfish to extreme conditions was successfully tested at the bottom of the ocean.
- Environment
‘Green’ burials are slowly gaining ground among environmentalists
Researchers asked older environmental activists what they planned to do with their bodies after death. Many were unaware of “green” burial options.
