The teen brain is especially susceptible to the harms of THC
Ask thousands of teens whether frequent use of certain substances brings a high risk of harm, and they mostly nail…
Ancient primates’ unchipped teeth hint that they ate mostly fruit
Soft fruits may have been the main dish on some ancient primate menus. An analysis of hundreds of fossilized primate…
Why the 2024 total solar eclipse will be such a big deal
Solar eclipses are dramatic events as a rule. But the total eclipse coming on April 8 is going to ratchet…
Salt may have carved out Mercury’s terrains, including glacierlike features
Mercury’s surface might not be quite so terra firma, at least on geologic timescales. The closest planet to the sun…
Here’s how much fruit you can take from a display before it collapses
If you take more than 10 percent of the fruit in a stacked produce display — watch out. The iconic…
Bacteria fossils hold the oldest signs of machinery needed for photosynthesis
Ancient tiny fossils from Australia may carry evidence of great power: the ability to make oxygen through photosynthesis. The fossilized…
Fetuses make a protein that causes morning sickness in pregnancy
A surge of a hormone made by fetuses triggers the stomach-turning nausea and vomiting of morning sickness, a new study…
Most people say self-control is the same as willpower. Researchers disagree
A scientific squabble over how to define self-control draws from an unlikely source: A story from Greek mythology. Sailing home…
A toxic gas that could help spawn life has been found on Enceladus
SAN FRANCISCO — For those delighted by the possibility of alien life, Enceladus, the wintry moon of Saturn, is a…
When it comes to physical activity, every bit counts
We’ve stepped into a new year, which for many people means new resolutions. And this story was supposed to tackle…
