Flash Science
Science · Space · How things work

Big questions,
explained in a flash.

Flash Science turns the biggest questions in science into clear, visual explanations you can actually understand — from gravity and black holes to why the ocean is salty.

What we explain

Six areas of curiosity, each unpacked step by step with evidence and original illustrations.

Space & Universe

Black holes, star distances, and why the night sky is dark.

How Things Work

The everyday science behind microwaves, GPS, Wi-Fi and flight.

Earth & Nature

Why the ocean is salty, why we have seasons, and more.

Physics

Gravity, light, and the ideas of Newton and Einstein made clear.

Technology

How modern machines and signals actually do what they do.

What If?

Science-based answers to fascinating hypothetical questions.

Our full library of in-depth explainers is being published now. In the meantime, questions and feedback are always welcome at contact@flashscience.org.