Astrobiology
Explorer (Ages 8-12)
Exoplanet Detection Methods
Astronomers find planets around other stars by watching tiny dimming or wobbling. Thousands of exoplanets are now known.
15 min
+15 XP
Requirements for Life
All known life needs liquid water, a stable energy source, and the right chemistry. These help us search elsewhere.
15 min
+15 XP
Mars Past and Present
Mars once had rivers, lakes, and oceans. Today it's frozen and dry. Searching for past or present life is a top priority.
15 min
+15 XP
Europa Hidden Ocean
Discover Europa Hidden Ocean as a core part of Astrobiology. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.
15 min
+16 XP
Biosignatures in Atmospheres
Discover Biosignatures in Atmospheres as a core part of Astrobiology. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.
15 min
+16 XP
Habitable Zone Concept
Discover Habitable Zone Concept as a core part of Astrobiology. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.
15 min
+16 XP