Panspermia

An illustration of the solar system in its early stages, with omoamua-like objects. Illustration courtesy of NASA/ESO/Danor Aharon

The seeds of the planets came from other solar systems

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In this illustration, the Milky Way is dotted with green bubbles, which highlight the places where life has spread beyond the solar system where it originated, creating a cosmic oasis, in a process known as panspermia. A new study hypothesizes that we may be able to identify the pattern of the Premium Lantern, if indeed it did occur. redit: NASA/JPL/R. Hurt We only have one example of a planet that is home to life - Earth. However, in the next generation, it may be possible to discover signs of life on planets orbiting distant stars. If we find life, new questions will arise, for example, did life arise spontaneously or did it spread from somewhere else? If life crossed the vast expanses of interstellar space a long time ago, how would we be able to tell? A new study by the Harvard-Smithsonian Institute for Astrophysics, concludes that if life could pass between the stars - in a process known as panspermia, it would spread in a characteristic pattern that we could potentially discover. redit: NASA/JPL/R. Hurt

"If life spreads from one solar system to another we can discover the pattern of the spread"

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Earth is bombarded with rocks from space. Illustration: shutterstock

The asteroid that wiped out the dinosaurs could also have sent rocks full of life from Earth to Mars and Jupiter's moon Europa

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A living creature discovered at a height of 27 kilometers in the atmosphere. Did it come from space? Photo: University of Sheffield

Living creatures from space or just drifting?

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Synthesis of hydrocarbon starting materials as a result of the impact of simple glacial mixtures on the ancient Earth. Image: Lawrence Livermore National Laboratories at UC Berkeley

Is the origin of life on Earth extraterrestrial?

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A hypothetical young planet orbiting a sun that has already cooled and is being constantly bombarded with materials from space - NASA illustration

Phosphorus, one of the essential elements for life, arrived on Earth through meteorites

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Professor Richard B. Hoover, an expert on carbonaceous meteorites and an astrobiologist in the service of NASA

Bacteria from another world were discovered in the meteorite

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An organic molecule is complex in space. Illustration: UCLA

Super complex organic molecules are found in the interstellar medium

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Does the atmosphere of Venus allow the existence of life? (Photo: NASA)

Astrobiology: Could there be life in space?

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Panspermia: flower power

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

We owe our lives to the comets

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The sweet milky way

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Mining molecules in distant dust clouds

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Now the scientists confirm - the origin of life from space

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Comets spread life

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Bacteria roam the galaxy and spread life

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The November meteor shower contained organic material

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Our ancestors may still have been from the Adimites

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