It feels like one of the most unanswerable questions out there but one Harvard University professor believes that aliens could well exist - and if they do then their technology would have a seismic effect on humanity.
Avi Loeb, an Israeli-American astrophysicist, has been dubbed the "alien hunter" for his work on trying to prove the existence of extraterrestrial life. He has now claimed in a new documentary that aliens may be travelling through hidden dimensions created at CERN, the European Organisation for Nuclear Research.
Scientists at the organisation in Geneva on the France–Switzerland border are using the Large Hadron Collider (LHC) - the world's largest and most powerful particle accelerator - in an attempt to recreate the conditions of the Big Bang. Through this, they hope to uncover how our universe first came to be.
Taking part in 'The Paranormal UFO Connection' documentary, Professor Loeb suggested that extraterrestrials may be much further along than us Earthlings, claiming they could have been working on dimension-hopping technology for billions of years already. The professor also said that if alien technology was able to reach us then we'd be in complete awe because it would be beyond what we on Earth currently have.
Professor Loeb noted: "Just like a cave dweller coming to a city like London or Europe, and seeing all the technological gadgets there. There will be a sense of religious awe, and we wouldn't understand it, especially if we are dealing with the effects of quantum gravity that we have any clue about." Travelling through extra-spatial dimensions would create a bigger chance of any collision, he added.
Charming UK village is 'UFO hotspot' with 'NASA scientists showing interest'Researchers at CERN, which is 100 metres underground, have looked for six 'extra spatial' dimensions and certain particles in particular that such dimensions exist. Back in 2012, they discovered the Higgs boson, also known as the God particle, an important missing piece in trying to figure out the mechanics of the universe.
Professor Loeb said: "Quantum mechanics was discovered exactly a century ago. And all the most sophisticated technologies we currently employ, such as the Internet, artificial intelligence, and so forth, rely on our understanding of quantum mechanics.
"But the process of learning is incomplete - there are several major puzzles in modern physics. Within the mainstream of theoretical physics for the past decades, the prevailing paradigm is that it is possible to unify quantum mechanics and gravity unless you work with extra-spatial dimensions."
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He added: "We see only three of them in our daily life. But the idea is that the others are curled. And we can't really detect them unless we shoot particles that have exceptionally high energies that will probe these tiny scales.
"Of course, if there are extra dimensions, then the reality that we are familiar with extends into them. And then one can imagine life in more than three spatial dimensions. It will be far more diverse and interesting."
Last year, the professor claimed that the universe and others may have been created in a lab by aliens because they have godlike intelligence. He discovered fragments at the bottom of the ocean that he said might be interstellar, which he said could prove the existence of aliens and provide insight into their technological capabilities.
He has previously been criticised for alleging that extraterrestrials exist but said that he feels it's "arrogant of us to think that we are alone, that we don't have a neighbour out there." Professor Loeb referenced the "tens of billions of planets" in our own galaxy, the Milky Way, and the "hundreds of billions of galaxies like the Milky Way in the observable volume of the universe" that could contain civilisations and life forms like ours.