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Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 91av’s exclusive in-depth articles, interviews and long reads.

Technology

US to fire up small reactors in 2026 as part of ‘nuclear renaissance’

Eleven companies are working towards an ambitious goal as part of the US Department of Energy's plan to fast-track the development of advanced nuclear reactor technologies

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Physics

Physicists stirred up controversy with scientific cooking tips in 2025

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Technology

The cassette tape made a comeback in 2025 thanks to a DNA upgrade

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Environment

EU carbon border tax will force others to cut emissions from 2026

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Health

We’ll learn about LSD’s potential for treating anxiety in 2026

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Physics

A controversial experiment threatened to kill the multiverse in 2025

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Developing a vaccine

Health

Benefits of mRNA cancer vaccines could exceed $75 billion in US alone

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Mathematics

Mathematicians unified key laws of physics in 2025

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Technology

The best and most ridiculous robots of 2025 in pictures

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illustration of an electron beam traveling through a niobium cavity, a key component of SLAC's LCLS-II X-ray laser

Physics

Inside world’s ultimate X-ray machine before it becomes more powerful

The Linac Coherent Light Source in California has been firing record-breaking X-ray pulses for years, but now it’s due for a shutdown and an upgrade. When it is turned back on, it will be even more powerful

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Technology

Microsoft made a splash with a controversial quantum computer in 2025

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Life

Human-plant hybrid cells reveal truth about dark DNA in our genome

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Mathematics

Mathematicians spent 2025 exploring the edge of mathematics

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Environment

2025’s best photos of the natural world, from volcanoes to icebergs

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