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25 Years After the Anthrax Attacks, America Remains Vulnerable

K. R. CALLAWAY

Letters filled with anthrax spores exposed flaws in the United States’ biosecurity systems. Experts say many of those issues still exist.

These Killer Female Apes Challenge the ‘Man the Hunter’ Origin Story

TAYLOR MITCHELL BROWN

Bonobos are as closely related to humans as chimps. New evidence that female bonobos are the primary hunters could radically alter our understanding of early human societies.

New Research Compares Long-Term Relief From 21 Antidepressants

CHRISTINA CARON

In the meta-analysis, a few drugs stood out for offering greater effectiveness over time.

This asteroid was born at the dawn of the solar system

Ryugu might have formed in the very first generation of planetary building blocks

Democrats Put Targets on Notice as Trump Oversight Takes Shape

EVAN HALPER

Letters that tell companies and officials not to destroy documents signal the direction of potential investigations next year.

Jensen Huang leaving Nvidia risks a ‘brain drain’ from the AI chipmaker

Nvidia's chips power the AI frontier—thanks, many say, to co-founder and now ex-CEO Jensen Huang

AI is disrupting math. Is science next?

Mathematicians will remember 2026 as the year AI changed everything about their field. Scientists may be next in line for disruption

Can a microdose of Ozempic help you live longer?

Tiny doses of GLP-1s are being marketed as antiaging drugs, but what evidence is there?

A Key Paris Agreement Goal Is Dead. What Now?

DAVID GELLES

Leaders at COP31 are confronting a new reality as global warming enters the “unsafe zone.”

Why did a Brooklyn building collapse so suddenly? Experts weigh in

The devastating incident on Wednesday has left at least 8 people dead and more than a dozen injured

These Male Dolphins Do Something Rare: Day Care

FANNI DANIELLA SZAKÁL

Male Franciscana dolphins are exceptional babysitters. Scientists are trying to figure out if they are thoughtful fathers or just hope to be.

No other animal walks like humans do. Here’s why

Our uniquely human walking style comes with evolutionary benefits—but also a cost

Record-breaking simulation sheds light on cosmic ‘dark ages’

Lumina, a huge computer model laden with complex astrophysics, is giving scientists a breathtaking virtual view of the young universe

The neuroscience behind stuttering

The first consensus guidelines on stuttering, released this summer, are throwing new light on an ancient condition

SpaceX Aims for Starship Launch on Friday. Here’s What to Know.

KENNETH CHANG

The audacious maneuver planned for Friday is a key step toward the company’s goal of making rockets fully reusable.