News
- Science & Society
Social media harms teens’ mental health, mounting evidence shows. What now?
Recent studies suggest a causal link between teen social media use and reduced well-being. Now, some researchers are looking into possible mechanisms.
- Health & Medicine
Taking a weight-loss drug reduced a craving for opioids
Early results from 20 people with opioid use disorder raise hopes that popular weight-loss drugs like Wegovy can tackle opioid addiction, too.
- Physics
Here’s how scientists reached nuclear fusion ‘ignition’ for the first time
The first fusion experiment to produce an energy excess required meticulous planning and also revealed a long-predicted heating phenomenon.
- Neuroscience
Ancient viruses helped speedy nerves evolve
A retrovirus embedded in the DNA of some vertebrates helps turn on production of a protein needed to insulate nerve cells, aiding speedy thoughts.
- Planetary Science
NASA’s OSIRIS-REx nabbed over 120 grams of space rocks from asteroid Bennu
After being stymied by two stuck screws, NASA finally accessed a trove of Bennu asteroid bits. Mission scientist Harold Connolly tells what’s next.
- Agriculture
Mixing up root microbes can boost tea’s flavor
Inoculating tea plant roots with nitrogen-metabolizing bacteria enhances synthesis of theanine, an amino acid that gives tea its savoriness.
- Health & Medicine
Newfound immune cells are responsible for long-lasting allergies
A specialized type of immune cell appears primed to make the type of antibodies that lead to allergies, two research groups report.
- Archaeology
These South American cave paintings reveal a surprisingly old tradition
Radiocarbon dates point to an artistic design practice that began in Patagonia almost 8,200 years ago, several millennia earlier than previously recorded.
- Agriculture
Could a rice-meat hybrid be what’s for dinner?
A hybrid food that combines rice, animal cells and fish gelatin could one day be a more sustainable way to produce meat.
- Animals
Does this drone image show a newborn white shark? Experts aren’t sure
If a claim of the first-ever sighting of a newborn white shark holds, it could help solve a mystery of where adult white sharks give birth.
- Archaeology
This Stone Age wall may have led Eurasian reindeer to their doom
Hunter-gatherers living 10,000 years ago in what is now Germany probably used the wall to trap reindeer in a nearby lake.
- Animals
Migratory fish species are in drastic decline, a new UN report details
The most comprehensive tally of how migrating animals are faring looks at more than 1,000 land and aquatic species and aims to find ways to protect them.
