资讯

Scientists aboard a research vessel near Los Angeles collected ash, air and water samples as fire blazed on the hills before them in January.
As calls to end fluoride in water get louder, changes to the dental health of children in Calgary, Canada, and Juneau, Alaska, may provide a cautionary tale.
Easy replication in cattle mammary glands means H5N1 bird flu is under no evolutionary pressure to adapt to spread easily in humans.
A weathered sign in the Minnesota River Valley proudly proclaims: “World’s Oldest Rock.” Erected in 1975, it marks a 3.8-billion-year-old gneiss — or so scientists thought.
Societal upheaval can trigger uncertainty, which makes people susceptible to cognitive traps. Experts suggest some simple tools can help.
Hubble is still going strong 35 years after it was launched into space. Celebrate its anniversary with some out-of-this-world images.
Some question whether the pups are really dire wolves, or just genetically tweaked gray wolves. But the technology could be used to help at-risk animals.
Rising global temperatures are driving the sharp decline in terrestrial water storage. This trend isn’t likely to change, scientists say.
Warming temperatures can ramp up the activity of methane-producing bacteria in wetland soils, adding to methane emissions.
An archaeological site in Germany suggests communal hunting and complex thinking emerged earlier in human evolution than once thought.
Autism rates are higher than ever before, probably because of more expansive and sensitive diagnoses. Those numbers highlight the need for more support for people with autism.
A new set of artificial intelligence models could make protein sequencing even more powerful for better understanding cell biology and diseases.