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Researchers Refute a Widespread Belief About Online Algorithms

November 20, 2023

Three computer scientists have disproved a long-standing conjecture about a fundamental problem involving imperfect information.

The Astonishing Behavior of Recursive Sequences

November 16, 2023

Some strange mathematical sequences are always whole numbers — until they’re not. The puzzling patterns have revealed ties to graph theory and prime numbers, awing mathematicians.

AI System Beats Chess Puzzles With ‘Artificial Brainstorming’

November 15, 2023

By bringing together disparate approaches, machines can reach a new level of creative problem-solving.

During Pregnancy, a Fake ‘Infection’ Protects the Fetus

November 14, 2023

Cells in the placenta have an unusual trick for activating gentle immune defenses and keeping them turned on when no infection is present. It involves crafting and deploying a fake virus.

Rogue Worlds Throw Planetary Ideas Out of Orbit

November 13, 2023

Scientists have recently discovered scores of free-floating worlds that defy classification. The new observations have forced them to rethink their theories of star and planet formation.

Why the Human Brain Perceives Small Numbers Better

November 9, 2023

The discovery that the brain has different systems for representing small and large numbers provokes new questions about memory, attention and mathematics.

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The Scientist Who Decodes the Songs of Undersea Volcanoes

November 8, 2023

In the rumbles and groans of underwater volcanoes, Jackie Caplan-Auerbach finds her favorite harmonies — and clues to the Earth’s interior.

In the ‘Wild West’ of Geometry, Mathematicians Redefine the Sphere

November 7, 2023

High-dimensional spheres can have a much wider variety of structures than mathematicians thought possible.

Cryptographers Solve Decades-Old Privacy Problem

November 6, 2023

Three researchers have found a long-sought way to pull information from large databases secretly, moving us closer to fully private internet searches.

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