Extraterrestrial

Scientist claims that life on Earth was seeded by extraterrestrials

By T.K. Randall
September 15, 2025 ·  25 comments

Image: Earth and Universe
Credit: Pablo Carlos Budassi / CC BY-SA 4.0 (adapted) According to Robert Endres of Imperial College London, the building blocks of life on Earth are so complex that it is highly unlikely that they arose naturally and within such a (relatively) short time period.

Instead, he argues, something else would have been needed to kickstart the process - an advanced extraterrestrial civilization that seeded our planet with the building blocks of life by delivering a microbial 'starter kit' around 4.2 billion years ago.

"Today, humans seriously contemplate terraforming Mars or Venus in scientific journals," he wrote.

"If advanced civilizations exist, it is not implausible they might attempt similar interventions - out of curiosity, necessity, or design."While this idea is certainly possible, what it doesn't do is explain the origin of life in the universe as it simply raises the question - if life on Earth was seeded by aliens, how did the aliens first arise ?

It is perhaps more reasonable to assume that if life arose on Earth, that it was through a natural process that can occur repeatedly throughout the cosmos.

The "aliens did it" argument is similar to the creationist "God did it" argument - it simply regresses the problem back a step and requires an answer to how that creator came to be.

Some scientists believe in a slightly different mechanism through which the building blocks of life arrived on Earth on meteorites and comets - seeding the planet through natural processes.

Whether we will ever be able to find out for sure, however, remains unclear.

Source: Mail Online | Comments (25)

Tags: Alien, Life