Archive

Latest Articles

The Joy of Asking About Infinity, Jellyfish and the End of the Universe

February 9, 2023

As The Joy of Why podcast returns for a second season, producer Polly Stryker and host Steven Strogatz invite listeners to join them and their brilliant new guests on another voyage of discovery.

What Lights the Universe’s Standard Candles?

February 8, 2023

Type Ia supernovas are astronomers’ best tools for measuring cosmic distances. In a first, researchers have managed to re-create one on a supercomputer, giving a boost to a leading hypothesis for how they form.

Researchers Discover a More Flexible Approach to Machine Learning

February 7, 2023

“Liquid” neural nets, based on a worm’s nervous system, can transform their underlying algorithms on the fly, giving them unprecedented speed and adaptability.

How Our Reality May Be a Sum of All Possible Realities

February 6, 2023

Richard Feynman’s path integral is both a powerful prediction machine and a philosophy about how the world is. But physicists are still struggling to figure out how to use it, and what it means.

Mathematicians Eliminate Long-Standing Threat to Knot Conjecture

February 2, 2023

A new proof shows that a knot some thought would contradict the famed slice-ribbon conjecture doesn’t.

Machines Learn Better if We Teach Them the Basics

February 1, 2023

A wave of research improves reinforcement learning algorithms by pre-training them as if they were human.

When Does the Brain Operate at Peak Performance?

January 31, 2023

The critical brain hypothesis suggests that neural networks do their best work when connections are not too weak or too strong.

Astronomers Say They Have Spotted the Universe’s First Stars

January 30, 2023

Theory has it that “Population III” stars brought light to the cosmos. The James Webb Space Telescope may have just glimpsed them.

How Quantum Physicists ‘Flipped Time’ (and How They Didn’t)

January 27, 2023

Two teams have made photons act as if time were simultaneously flowing in two directions. The experiments demonstrate a way to potentially boost the performance of quantum devices.

Get highlights of the most important news delivered to your email inbox