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Astrobiology

Unlock the secrets of life beyond Earth and planetary systems

8 lessons
3 weeks
800 XP
Your progress0 / 800 XP
Click a lesson to start learning!
Lessons
1
Defining Life in a Cosmic Context
Understand what makes something alive and where we might find it.
Quick winBeginnerMilestone
+50 XP
~5 min
2
The Chemistry of Organic Building Blocks
Learn about the carbon-based molecules essential for all known life forms.
TheoryBeginner
+50 XP
~7 min
3
Habitable Zones and Goldilocks Planets
Explore the regions around stars where liquid water can exist.
TheoryBeginnerMilestone
+75 XP
~9 min
4
Extremophiles: Life in Earth's Harshest Places
Examine organisms thriving in extreme heat, cold, and radiation environments.
PracticeIntermediateMilestone
+75 XP
~11 min
5
Biosignatures: Detecting Life from Afar
Discover how scientists identify chemical signatures of life in planetary atmospheres.
TheoryIntermediate
+100 XP
~13 min
6
The Search for Life on Mars
Analyze past and current missions searching for Martian microbial life.
MilestonePracticeMilestone
+125 XP
~15 min
7
Icy Moons and Subsurface Oceans
Investigate the potential for life within Europa, Enceladus, and Titan.
AdvancedTheory
+125 XP
~17 min
8
Capstone: Designing a Search Mission
Apply your knowledge to propose a mission to find extraterrestrial life.
ProjectMilestoneMilestone
+150 XP
~20 min

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