01 / THE HABITABLE EXPERIMENT
One planet.
Infinite what ifs.
Move a world. Change its atmosphere.
Discover the delicate balance that makes
our pale blue dot possible.
Small experiments.
Bigger understanding.
About 3 minutes eachTHE UNIVERSE DOESN’T DO ORDINARY
Six worlds. Six perspectives.
A curated NASA comparison.
Real catalog values. Very different possibilities.
Earth
Earth’s ocean covers about 71% of its surface. Liquid water, atmosphere, chemistry, and a long history together make it much more than a temperature reading.
Our simple model does not resolve weather, seasons, or regional temperatures.
Values rounded from NASA fact sheets and exoplanet catalog pages, checked September 17, 2026. Exoplanet values may be measured or inferred; uncertainties are omitted from this introductory comparison. Different stars mean distance alone does not determine climate.
INTO YOUR DAY
On Venus, one rotation takes 243 Earth days—longer than its 225-day year.
OPEN TO EVERYONE.
THE LEARNING FRONTIER SERIES
Knowledge opens worlds.
Let’s leave the door open.
We create learning experiences that invite you to experiment, question, and discover. Planet Lab is freely shared by ACED. Bring your curiosity. Leave with a new way of seeing.
About Planet Lab
For curious learners aged 12 and up; allow approximately 10–15 minutes. No prior astronomy is required. Predict how distance, reflectivity, and greenhouse warming change a simplified planet’s temperature, test one variable, and explain a new combination in free exploration.
Created and maintained by ACED. This interactive beta has not undergone representative learner testing and makes no claim of proven learning effectiveness.
Accessibility and narration
Use Tab to move between controls and arrow keys to adjust sliders. Temperature readings and the text guide accompany the globe. Pause globe rotation using the pause control. Sound starts off; turn it on for optional browser narration.
Full screen-reader and device testing remains pending. Report an access problem using the footer link and include the control or step involved.