Four billion years ago, Earth was violent, hot, and unstable. Yet new research suggests that by then, life had already ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

Longevity science has spent decades chasing single molecules that might slow aging, but most candidates have delivered modest ...

For decades, opioids have been the blunt instrument of modern pain care, powerful enough to quiet severe suffering yet risky ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Mars once had sprawling river systems that rivaled major watersheds on Earth, and scientists have now identified the biggest ...

Life may have emerged from a surprisingly simple network of chemical reactions long before cells or genes existed.

As a scholar researching clouds, I have spent much of my time trying to understand the economy of the sky. Not the weather ...

Starlight and stardust are not enough to drive the powerful winds of giant stars, transporting the building blocks of life ...

WASHINGTON — A new report from the National Academies of Sciences, Engineering, and Medicine identifies the highest priority science objectives for the first human mission to Mars, and says searching ...

Human biology evolved for a world of movement, nature, and short bursts of stress—not the constant pressure of modern life. Industrial environments overstimulate our stress systems and erode both ...