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Harvard Scientist Avi Loeb Warns Humanity May Need a ‘Noah’s Ark’ in Space

Harvard’s Avi Loeb warns humanity may need a space Noah’s Ark to survive global catastrophes and urges openness to alien civilizations.

Published By: Amreen Ahmad
Last Updated: September 3, 2025 18:00:29 IST

Th Scientist Avi Loeb, the Harvard astrophysicist, who created heat with his stark warning about humanity’s future survival and he insinuated that there will come a time when the Earth will be no longer a safe haven for humankind. “Disastrous events whether natural or man-made may someday compel humanity to build its very own modern day Noah’s Ark not to sail its seas but to venture into the vast emptiness of space as a lifeline for the species,” Loeb said.

Noah’s Ark: Rethinking Human Intelligence in the Universe

On Noah’s Ark, Loeb further demolishes the ancient dogma that humans are the absolute apex of intelligence in the universe. In his writings and interviews and he has criticized the scientific community for rejecting possibilities that do not fit the line of conventional thinking.

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According to his school of thought, evasion from some evidence may blind us from seeing the indicators of extraterrestrial civilizations. To him, Earth is just a small piece of the universe’s real estate, and ignoring the vast possibilities beyond our planet reflects a dangerous intellectual arrogance.

Case for Alien Civilizations

Loeb’s conviction is that the universe has a lot more in store for the cosmos than what exists within the earth and he declares that space and time are homogeneous, which doesn’t mean harsh and extreme but potentially habitable. This is in line with his controversial hypothesis that such interstellar objects, such as 3I/Atlas, might actually be alien probes.

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He warns, if any intelligent being passed by our planet, Loeb says, its failure to establish contact of any sort would, in our mind and be tarnished primitive by the cosmic scale. His argument: Humankind should keep an open mind so that any time they try hoping to find-and understand may be less than what is outside the solar system.

Noah’s Ark Face Existential Threats on Earth

Loeb’s Noah’s Ark case is more than mere metaphor. He paints a very dark future of extinction level threats either from human induced climate change and artificial intelligence or asteroid strikes, or highly advanced alien technology. When this catastrophic event strikes, the survival of civilization may well depend on the construction of spacecraft capable of transporting humans beyond Earth. However, instead of floating on water and this Ark would soar through interstellar space, ensuring our continuity among the stars.

Loeb’s warning encompasses vulnerability and opportunity. While home to Earth, preparing for the unknown might be the best insurance humanity can take. Exploration, open-minded science and readiness to act might be what preserves our species long after our planet is unable to sustain it.

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