Aliens may be travelling from one planet to another via meteorites: Study

The search for extraterrestrial life in our universe has spanned several years and theories. While we may have not found signs of life yet, that hasn't stopped human being's thirst to know if someone is out there. Scientists have been coming up with different ideas and theories to learn about the existence of aliens.

The scientists instead of changing where they are looking for potential alien life, are altering what exactly they are searching for.

A new theory has been proposed by a pair of astronomers on the basis of panspermia, according to which life can begin on one planet and then travel to another planet through meteorites.

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The theory is based on "panspermia", which is a fringe theory that suggests all life forms can go from one planet to another by ‘hitching rides’ on meteors.

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The latest research has been put forward by astronomers Harrison B. Smith and Lana Sinapayen and has not been peer-reviewed. This research suggests the possibility of panspermia, however, the implications are huge.

The theory of panspermia will help scientists narrow down their search for alien life. This is important as till now more than 5,000 exoplanets have been identified by NASA where there are chances of presence of life and looking at each individually will take years and years.

Scientists have till now not figured out in what form life may exist in the universe beyond Earth and if Earth is truly the only planet that supports life.

Aliens travelling on meteorites to make changes on other planets: Study

Similar to how the conditions on Earth have been altered by life on the planet and in the atmosphere of our planet, which includes adding more oxygen, the aliens are likely to have altered the properties of an exoplanet.

As per the researchers, if the aliens can travel as per panspermia, then they are likely to try to make similar changes on every planet they travel to.

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As per the new study, if alien life is searched in this way, it can mean that experts will be able to potentially find clusters of planets close to each other with similar characteristics and this can be an indicator of potential life.

This finding comes at a time when new research has emerged according to which bacteria filled with purple pigments are likely to be hosting extraterrestrial life.

(With inputs from agencies)