Skip to content
World 7 · Design a Habitable World · 12 min · PRO

Step 4: what would we see?

Signals from your world

PRO · Exoplanet Hunter

World 7: Design a Habitable World is part of PRO

The first world of Exoplanet Hunter is free. PRO opens the other 26 lessons in 6 worlds — simulations, quizzes and all.

  • Step 1: choose your star
  • Step 2: pick an orbit and a size
  • Step 3: air and oceans
PRO includes
  • All 60 labs — every world, every lesson
  • Practice exams and certificates

$8.33/mo, billed yearly ($99.99) · or $39.99 monthly

Unlock Exoplanet HunterTry the free world
My notes
Only saved in this browserAll my notes →
← Step 3: air and oceans

Report a mistake

What is wrong?
0 / 2000 · at least 10 characters
Sent along with your report
  • Page
  • About Step 4: what would we see? — Exoplanet Hunter · exoplanets/step-observe
Plus your browser type. Reports go to our support system; see the privacy notice.