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Life might be difficult to find on a single planet but may be obvious across many worlds

Life might be difficult to find on a single planet but may be obvious across many worlds
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Harrisonb smithLana sinapayenJenny mottorTokyo institute of technologyLife science instituteAgnostic biosignature basedModeling panspermiaEarth life science instituteTokyo instituteSony computer science laboratories

Life Might Be Difficult to Find on a Single Planet But Obvious Across Many Worlds

Detecting chemical biosignatures on exoplanets is a painstaking process fraught with potential false positives. Is there a better way?

Harrisonb smithLana sinapayenJenny mottorLife science instituteTokyo institute of technologyAgnostic biosignature basedModeling panspermiaEarth life science instituteTokyo instituteSony computer science laboratories

Life Spreads Across Space on Tiny Invisible Particles, Study Suggests

Does life appear independently on different planets in the galaxy? Or does it spread from world to world? Or does it do both? New research shows how life could spread via a basic, simple pathway: cosmic dust.

Georgia generalJenny mottorAlpha centauriOleg kuznetsovSchool of physicsFree university of tbilisiDeep cosmosPlanetary dust grainsFree universitySimone marchiSpace launch systemFalcon heavyDrake equation

Cosmic Dust Could Spread Life from World to World Across the Galaxy

A new paper examines how dust from a life-supporting planet like Earth could carry life throughout the Milky Way. Dustspermia?

Georgia generalAlpha centauriJenny mottorOleg kuznetsovSchool of physicsFree university of tbilisiDeep cosmosPlanetary dust grainsFree universitySimone marchiSpace launch systemFalcon heavyDrake equation

Could Life Exist in Molecular Clouds?

One researcher thinks life could have originated in cold molecular clouds before spreading elsewhere, including Earth.

Lei fengTo fengJenny mottorCatholic university of americaUniversity of arizona idahoT esplin pennsylvania state universityAdam block steward observatory university of arizonaTaurus giant molecular cloudAdam blockAcetogenic lifeMolecular cloudPennsylvania state universityGladys koberCatholic universityImage creditLast universal common