The eerie stencil paintings of human hands in Spanish caves might not be from humans at all. New dating methods of the paintings suggest some of the cave art is more than 40,000 years old and could have been drawn by Neanderthals.
Dr. Neil deGrasse Tyson keeps a close eye on science in the movies — he even got a change made to Titanic. Here, he talks about truths and less-than-truths in some of the films that are taking us outside our own realm.
Villagers say they're getting a raw deal as companies rush to buy up African land to form mega-farms. Farmers complain they've been ousted from the land while promises to improve water systems and schools and replant uprooted crops are not being kept.
Genes and the environment both shape health and development. But their effects are not always equal. Researchers in the U.K. say they've mapped hotspots where nature has a stronger influence, and others where nurture dominates.
Earth has been struck by asteroids many times. It will happen again. The question is how soon, and whether the asteroid will be large enough to cause significant damage. A Kansas man is helping to track asteroids with the potential to become a threat, and he does it from his own backyard — with a telescope he made himself. Machinist by day, amateur astronomer by night, Gary Hug is making a name for himself as one of the most prolific asteroid-trackers in the world.
Audie Cornish talks to Travis Longcore, associate professor of spatial sciences at the University of Southern California, about bird collisions with communication towers. Longcore co-authored a study that found 6.8 million birds die each year in the U.S. because they fly into communication towers.
A 700-pound NASA science satellite roared into orbit Wednesday on a mission to map high-energy features across the universe, including black holes and supernovae. The NuSTAR mission will provide scientists with unprecedented resolution for viewing X-ray objects in space.
The human body contains about 100 trillion cells, but only maybe one in 10 of those cells is actually human. The rest are from bacteria, viruses and other microorganisms. Now, scientists have unveiled the first survey the "human microbiome," which includes 10,000 species and more than 8 million genes.
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