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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.
Mars was warmer and wetter long ago. If anything was alive there, what came next was either a tragedy or a masterclass in survival.
George Szpiro explores the philosophical ideas that explain why justice — not freedom or efficiency — may better anchor a fair society.
Known as the "past hypothesis" problem, the Universe's initially low entropy has long puzzled scientists. Now, cosmic inflation solves it.
Leadership isn’t about mastering a fixed set of skills, but creating the meaningful, human-centered experiences that inspire others.
As the world teeters on the brink of nuclear war, distant, advanced civilizations would never know it. Earth appears peaceful from far away.
In this excerpt from her new book, Jennifer Shahade argues that the smartest move in life, as in chess, is sometimes a sideways one.
The 1st generation of stars formed, lived, and died very early on. But 2nd generation stars could still persist today. Did we just find one?
The ideology, economics, and psychology behind the modern world's draining of color from homes, cars, and everyday objects.
Howard Gardner joins us to reflect on the theory of multiple intelligences and why the question of who owns intelligence is more important than ever.
As humanity journeys to the Moon for the first time since 1972, can we rediscover our shared responsibilities: to the world and each other?
As light travels across the Universe, it's subject to cosmic expansion, changing fields, and relative motion. How about gravitational waves?
In this excerpt from The Wage Standard, Arindrajit Dube explains how "monopsony" gives some employers the power to set wages below competitive levels.
Even though no human has stepped foot on the Moon's surface in 50 years, the evidence of our presence there remains unambiguous.