A Momentary Flow

Updating Worldviews one World at a time

Early life forms or the ingredients for life may have traveled to Earth on chunks of rock, scientists say.
An international team reports that under certain conditions, there is a high probability that life came to Earth—or spread from Earth to other planets—during the solar system’s infancy when Earth and its planetary neighbors orbiting other stars would have been close enough to each other to exchange lots of solid material.
The findings—published in the journal Astrobiology—offer the strongest support yet for “lithopanspermia,” the idea that basic life forms are distributed throughout the universe via meteorite-like planetary fragments cast forth by disruptions such as planet and asteroid collisions.

Early life forms or the ingredients for life may have traveled to Earth on chunks of rock, scientists say.

An international team reports that under certain conditions, there is a high probability that life came to Earth—or spread from Earth to other planets—during the solar system’s infancy when Earth and its planetary neighbors orbiting other stars would have been close enough to each other to exchange lots of solid material.

The findings—published in the journal Astrobiology—offer the strongest support yet for “lithopanspermia,” the idea that basic life forms are distributed throughout the universe via meteorite-like planetary fragments cast forth by disruptions such as planet and asteroid collisions.

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