Dr. Fei-Fei Li of the Stanford Institute for Human-Centered AI discusses the promise and peril of the ground-breaking technology. Plus, research tracking adults over 50 shows that social activity, intimacy, and personal connections are key to good health as we age. And, new analysis of remains and burial items suggests women and men did both parts of hunting and gathering in the Paleolithic era.
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Voting for your favorite Winter Nature Photo Contest submissions starts today at 2 p.m. EST.
Closer study of the Van Allen radiation belts above Earth is providing new questions for science.