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Physics

The fascinating story of the ultimate cosmic law

How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the most important numbers in the universe

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CMB-S4 will use telescopes installed at the South Pole to measure variations in the temperature and polarization of microwave light across most of the sky to probe for ripples in space-time. Shown here is the South Pole Telescope. Photo: Brad Benson, University of Chicago, Fermilab

Space

The end of US support for the CMB-S4 telescope is devastating

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Mathematics

Why zero is the most important number in all of mathematics

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A view down

Society

Could a self-monitoring system for criminals replace prisons one day?

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An infant holds a watering can in a greenhouse

Mind

How to nurture infant microbiomes for a lifetime of good mental health

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Fingerprint Authentication Button. Biometric Security Background

Technology

Digital ID cards could be a disaster in the UK and beyond

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Humans

Who were the first humans to reach the British Isles?

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Technology

What makes a quantum computer good?

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Crescent moon rise at dawn with passing passenger jet

Environment

How pie-in-the-sky conspiracies distract from climate dangers

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Space

Is the universe really one big black hole?

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density – given that the universe contains a lot of relatively empty space, could the whole cosmos be a black hole?

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Space

Why 'beauty factories' could solve two massive cosmological mysteries

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Mathematics

The most important mathematician you’ve (probably) never heard of

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Environment

What made solar power the most desirable energy source on the planet?

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Mind

Is reading always better for your brain than listening to audiobooks?

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