The Younger Dryas impact hypothesis argues that a comet strike caused major changes to climate and human cultures on Earth about 13,000 years ago.
Too few babies — not overpopulation — is likely to be a major problem this century.
Hunter-gatherers probably had more spare time than you.
75 years after Erwin Schrödinger's prescient description of something like DNA, we still don't know the "laws of life."
If more people decide to apply pressure through their choices, slowly but surely we would reach climate change herd immunity.
For democracy to prosper in the long term, we need more people to reach higher levels of education.
Technology of the future is shaped by the questions we ask and the ethical decisions we make today.
Why do we deprive students of the historical and cultural context of science?
The study found that people who spoke the same language tended to be more closely related despite living far apart.
Dr. Katie Mack explains what dark energy is and two ways it could one day destroy the universe.
The search for alien life is far too human-centric. Our flawed understanding of what life really is may be holding us back from important discoveries about the universe and ourselves.
Other cultures can differ greatly from your own, but there are commonalties in the way we express emotions.
Synchronous movement seems to help us form cohesive groups by shifting our thinking from "me" to "we."
To war is human – and Neanderthals were very like us.
We make school kids read "Lord of the Flies"—but it's only half the story.
In fact, the maximum human lifespan has barely changed since we arrived.