Linked from

The 15 pages that link to Panspermia, each with the reason it gives.

• Origin of lifeCompared with: It shifts the location of life’s beginning without explaining how life first arose.

• MeteoriteCompared with: Meteorites can transport rocks between planets, but whether they can transport viable life remains unresolved.

• AbiogenesisCompared with: It relocates life’s arrival but does not by itself explain how life first originated.

• Prebiotic chemistryCompared with: It shifts the question from terrestrial chemical origins to delivery from extraterrestrial environments.

• Miller–Urey experimentCompared with: It shifts the proposed source of life's precursors away from atmospheric synthesis on Earth.

• Spontaneous generationCompared with: It offers a different account of life's origin and does not propose routine generation from decay.

• Last universal common ancestorCompared with: It shifts the location of life's earliest origin, while leaving LUCA as a later shared ancestor.

• Rare Earth hypothesisCompared with: It offers a route for life to spread that differs from repeated independent origins.

• Life (biology)Compared with: It shifts the proposed location of life's beginning without explaining how life first arose.

• Christian de DuveCompared with: De Duve favored an Earth-based chemical origin rather than extraterrestrial delivery of life.

• Extraterrestrial lifeCompared with: It concerns how life might travel through space, not whether it originated beyond Earth.

• BiogenesisCompared with: It relocates life’s arrival rather than explaining the first emergence of life.

• Carbon-based lifeCompared with: It offers a possible route for life’s dispersal, not an explanation of its ultimate origin.

• Primordial soupCompared with: It shifts the proposed origin of life's ingredients or organisms beyond Earth's primordial waters.