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The Joy of Asking About Infinity, Jellyfish and the End of the Universe
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?
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
“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
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
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
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?
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
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)
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.