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Small BodiesStories, updates, insights, and original analysis from The Planetary Society.
Why the “habitable zone” doesn’t always mean habitable
The habitable zone is a useful concept in astrobiology, but it can sometimes paint an over-simplified picture of planetary habitability.
Eureka? Scientists’ first hints of life on other planets may not be so obvious
Knowing that you've found signs of life beyond Earth may not be as clear-cut and simple as one might think.
How we use starlight to look for alien life
The process of spectroscopy can help scientists hunt for biosignatures.