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A technosignature is a possible fingerprint of technology. Heat. A radio whisper. A shape that nature rarely makes.

A night sky of ordinary stars, one of them glowing strangely warm. A possible fingerprint, not a discovery.

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Fingerprint

What would count as a fingerprint of technology?

01

Lamp

02

House

03

City

04

Planet

05

Star

06

Galaxy

07

Future

How would we know?

Star

Could we build this?

Not better, just bigger.

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For curious minds

Wonder Atlas · How Do We Know? · Animal Compass · Try This · Did You See That? · Could We Live There? · What’s Pulling? · Can You Read This? · Signals · Before Us · Words Travel · Long Before · Maybe

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