Here's his thinking: Any civilization capable of exploring beyond its own solar system must be on a path of unrestricted growth and expansion. That's one likely eventuality, anyway, said theoretical physicist Alexander Berezin. The closer we get to finding aliens, the closer we get to destroying them. Humans will kill all the aliens (or already have). If we don't learn to broaden our frames of reference, we could miss the gorilla staring us in the face.

So, what does this study show us? Basically, our own imagination and attention span limit our search for extraterrestrialsy. In reality, aliens probably won't look anything like apes they may not even be detectable by light and sound waves, the researchers wrote. As the participants hunted for what they imagined alien life to look like, only about 30 percent noticed the gorilla man. Hidden among several of these images was a tiny man in a gorilla suit. In a small study, the researchers asked 137 people to look at pictures of other planets and scan the images for signs of alien structures. could sabotage our search for alien life, a team of psychologists from Spain wrote earlier this year. That's fine for Hollywood - but these preconceived images of E.T. Thanks to pop culture, the word 'alien' probably makes you envision a spooky humanoid with a big, bald head. 'We're looking for analogues of ourselves,' Shostak said, 'but I don't know that that's the majority of the intelligence in the universe.' We've already found aliens (but are too distracted to realize it). Instead of focusing all our resources on finding other habitable planets, perhaps we should also look to places that would be more attractive to machines - say, places with lots of energy, like the centers of galaxies. 'And I think that's important, because the successors are machines.'Ī truly advanced alien society may be completely populated by super-intelligent robots, Shostak said, and that should inform our search for aliens. 'Any society that invents radio, so we can hear them, within a few centuries, they've invented their successors,' Shostak said at the Dent:Space conference in San Francisco in 2016. Simply put, we should be looking for machines, not little green men. Full-blown artificial intelligence may be right around the corner, and futurist Seth Shostak said that's reason enough to reframe our search for intelligent aliens.

Humans invented the radio around 1900, built the first computer in 1945 and are now in the business of mass-producing handheld devices capable of making billions of calculations per second. 'Instead, would be to some extent arrested on their home planet.' We're looking in the wrong places (because all aliens are robots). 'On more-massive planets, spaceflight would be exponentially more expensive,' study author Michael Hippke, a researcher affiliated with the Sonneberg Observatory in Germany, previously told Live Science. According to a study published in April, a planet with 10 times Earth's mass would also have an escape velocity 2.4 times greater than Earth's - and overcoming that pull could make rocket launches and space travel near impossible. Unfortunately, we'll probably never meet these aliens.

This means alien life could conceivably be evolving on super-Earths all over the universe. Star surveys have turned up oodles of these worlds that could have the right conditions for liquid water. In astronomy, the term refers to a type of planet with a mass up to 10 times greater than Earth's. No, 'super-Earth' is not Captain Planet's dorky cousin. The aliens are imprisoned on 'super-Earths.' Can we expect them to contact us? Heck, Stern said - these critters live so deep, we can't even expect them to know that there's a sky over their heads. That's great for the aliens, but it also means we'll never be able to detect them just by glancing at their planets with a telescope. 'Impacts and solar flares, and nearby supernovae, and what orbit you're in, and whether you have a magnetosphere, and whether there's a poisonous atmosphere - none of those things matter' for life that's underground, Stern told. NASA physicist Alan Stern thinks clandestine water worlds like these could provide a perfect stage for evolving life, even if inhospitable surface conditions plague those plants. Subsurface oceans of liquid water slosh beneath multiple moons in our solar system and may be common throughout the Milky Way, astronomers say. No, seriously - alien life is probably trapped in secret oceans buried deep inside frozen planets. If humans hope to converse with ET, we'll need to have a few icebreakers handy. (Image credit: JPL-Caltech/SETI Institute/NASA)

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