How the ‘identity agnostic’ neutrino exists in three states all at once

Most objects in the Universe maintain a single identity regardless of the context. Even at the subatomic level, electrons keep the very same mass and charge whether they’re floating freely through interstellar space or part of an atom on Earth. So how then is it that a neutrino can be found in one of three distinctly different ‘flavours’ depending on when and where it’s observed? This brief animation from MinutePhysics investigates how quantum superposition allows neutrinos to seemingly defy logic by oscillating between three different identities without ever committing to one.

Video by MinutePhysics

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Essay/Earth Science

The shape of life

The ancient Earth was profoundly alien. How do we distinguish between the living and non-living in the fossil record?

Sophia Roosth


Female black widows have a murderous reputation, but do the males have it coming?

6 minutes

Idea/History of Science

What a fossil revolution reveals about the history of ‘big data’

David Sepkoski


Animal agents

Can they shape their own lives? Or the course of history? It's time to reconsider the significance of animal agency

Amanda Rees


Why do domesticated animals tend to have floppy ears, short snouts and lighter skin?

3 minutes

Idea/Human Evolution

The red and green specialists: why human colour vision is so odd

James Higham