Astrobiology

Chirality and Amino Acids

Life's amino acids are all "left-handed." Why? It's one of biology's biggest mysteries — and a clue for finding alien life.

Stellar Habitable Zones

The "Goldilocks zone" is the orbital distance where liquid water can exist. Too close = too hot. Too far = too cold.

JWST Biosignature Search: How We Hunt for Life in Alien Atmospheres

Discover JWST Biosignature Search 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.

Mars Perseverance Samples

Discover Mars Perseverance Samples 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.

The RNA World: Life's Possible First Molecule

Discover RNA World Hypothesis 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.

Tidal Locking Effects

Discover Tidal Locking Effects 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.