Free · Hot and cold worlds

Exoplanet Temperature Explorer for Kids

Compare estimated temperatures on rocky worlds and giant planets far from Earth.

  • Clear, kid-friendly steps
  • Private in your browser
  • No signup

Worlds beyond our Sun

Pick a planet to explore

Estimated temperature-4 °CA planet can be much hotter or colder in different places.

Dorado

TOI-700 d

Found 2020
Orbits TOI-70037.42 Earth days per year

This roughly Earth-size planet is in its star's habitable zone.

Distance
101 light-years
Found by
transit
Size
1.14× Earth

Powered by Open Exoplanet Catalogue (curated subset), an open-source library available under MIT.

Three simple steps

How to use it

  1. Pick a real planet that circles a star beyond our Sun.
  2. Compare its size, year, heat, distance, or discovery date.
  3. Try another world and see how different it can be.

Private by default

Your words and choices stay in this browser tab. There are no accounts, uploads, ads, or trackers inside the tool. Close the tab and the working data is gone.