What if one of our oldest ideas about ancestry is simply wrong? Harvard geneticist David Reich argues that ancient DNA has exposed the myth of purity and uncovered a far messier history of who we are and where we came from.

On cosmic scales, only dark matter (or something equivalent) gives us the Universe we observe. Now, the Sunyaev-Zel'dovich effect agrees.

Although a star's "birth" is well-defined, it doesn't correspond to an ignition event in its core. Here's how stars are actually born.

Every time a new star forms, there's an opportunity to form planets alongside and around it. How does it happen, and how long does it take?

Jan Morris's biographer confronts the limits of storytelling while trying to capture a life defined by contradiction and reinvention.

The voice in your head feels like your own, but it’s actually constructed by neurological processes. Three experts explain how this system shapes both perception and identity.

"Color" with respect to the strong force is just an analogy. Here's how to understand it without colors, group theory, or any advanced math.

Most L&D pros assume attention comes with the job title. Marketers wake up every day convinced they have to earn it. That gap explains a lot.

From 2004 through 2017, Saturn was imaged many times and from many angles up close by Cassini. This new viral image isn't real; it's AI.

Your sense of self isn’t located in a single part of the brain — it emerges from a complex interplay of cognitive processes that change over time.

Globalization did not fail — it improved the lives of billions of people. The next phase of human development could push us to a new level of global abundance.

Mary Beard uncovers the spectacle of the Ancient Roman parade, the Roman Triumph.

One parameter, alone, sets the dividing line between rocky planets, gas giants, brown dwarfs, stars, and much more. Here's why mass matters.

The top priority was to maintain the agenda.

The distance ladder and the CMB give incompatible values for the expansion rate. A new study shows just how robust the Hubble tension is.

By looking at a giant, remarkable, edge-on protoplanetary system, astronomers have found a proto-protoplanet for the first time.

Germany built aggressive systems to combat hate speech, but the line between defending democracy and undermining it may be beginning to blur.

Human beings have now traveled farther from Earth than ever before with Artemis II's flyby of the lunar far side. Here's how it happened.

Rachel Yehuda, a leading PTSD researcher, has spent her career uncovering the way that trauma can leave impressions on our genes, sometimes passing biological echoes of those events to the next generation.

Brad Stulberg breaks down the biology, philosophy, and psychology behind genuine excellence and how to reach it.