Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Astronomy

Detecting Biosignatures in Rocky Exoplanet Atmospheres with JWST

Quick fact

In 2023, JWST tentatively detected carbon dioxide in the atmosphere of a rocky exoplanet (TRAPPIST-1 c), a milestone that brings us closer to finding gases that could signal life.

Why this is interesting

What if we could smell the air of a planet hundreds of light-years away? Scientists are doing exactly that with the James Webb Space Telescope.