With no assigned goals, AI agents created their own challenges — and learned from them.

An uninvited encounter in orbit exposes a new vulnerability in the war over satellite intelligence.

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Research suggests collagen peptides may strengthen tendons and ease joint pain, but benefits remain uncertain.

A radical rethink of honey bee biology challenges how scientists understand swarming and even beekeeping.

In a reported world first, a modified military drone carried a wounded soldier to safety.

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The empire’s 300,000-kilometer road network was stranger and less Rome-centered than legend suggests.

The transplanted cells formed circuits, reached the spinal cord and responded to injury.

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The lichen-covered ornament turned out to be a rare work by a pioneering American sculptor.

Forget radio signals. Scientists want to search lunar dust for physical evidence of ancient alien technology.

America has crossed a rhetorical threshold in an increasingly militarized space race.

Metal ions may help DNA molecules overcome their mutual electrical repulsion.

India’s Lakshadweep project could show whether ocean heat can deliver reliable power and fresh water.

Politeness survives perfectly well without the so-called 'magic word'.

Researchers found evidence that Ice Age foragers were sucking psychoactive betel nuts 25,000 years ago.

Ancient DNA suggests Rome’s fall reshaped Europe through gradual migration and intermarriage, not a sudden barbarian takeover.

AI insiders are warning that the race toward self-improving systems is outrunning efforts to control them.

New fossils, tools and butchered bones put an elusive human lineage into everyday life.

The researchers squeezed water to millions of atmospheres and discovered a bizarre new form of ice.

This extinct dog was raised for its wool and its only known pelt has finally returned to canada.

AI could supercharge growth while pushing income from white-collar workers toward capital.