<ul><li>The universe we live in may not be the best for supporting life, as there could be multiple universes with different properties.</li><li>Alien life may exist in colonies floating freely in space, without a traditional planet.</li><li>Subsurface oceans on moons in our solar system, like Europa, could be hiding ideal conditions for alien life.</li><li>Super-Earths, planets larger than Earth, could potentially support life but may hinder interstellar travel.</li></ul>

12 Surprising Reasons We Haven’t Discovered Alien Life Yet

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