The Webb Telescope Further Deepens the Biggest Controversy in Cosmology

By LIZ KRUESI

A long-awaited study of the cosmic expansion rate suggests that when it comes to the Hubble tension, cosmologists are still missing something.

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EXPLAINERS

The Geometric Tool That Solved Einstein's Relativity Problem

By JOSEPH HOWLETT

Tensors are used all over math and science to reveal hidden geometric truths. What are they?

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THE JOY OF WHY

Are Robots About to Level Up?

Podcast co-hosted by
STEVEN STROGATZ

In this week's episode, co-host Steven Strogatz talks with pioneering roboticist Daniela Rus about the future of robotics.

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NEUROSCIENCE

What Your Brain Is Really Doing When Doing 'Nothing'

Video by CHRISTOPHER WEBB YOUNG, EMILY BUDER & MARIE CASCONE

When your mind is wandering, your brain's "default mode" network is active. New research is revealing the default mode's role in memory, social awareness and sense of self.

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Sébastien Calvignac-Spencer searches museum jars for genetic traces of flu, measles and other viruses. Their evolutionary stories can help treat modern outbreaks and prepare for future ones.

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