Scary news: We are a single spec of a massive universe that is seemingly endless. So far, we have not discovered life beyond our planet, and in our own lifetimes that may remain to be the case, but more people now than ever believe life exists beyond our planet, and they’re more than likely right.
The question is when we do discover life beyond Earth will it be something we can relate to? Will their conditions for life be the same as ours, therefore their native species could be comparable to the various creatures on Earth? Or will their conditions for life be so drastically different and completely alien from life as we know it that it would essentially result in us having to go back to the drawing board to make sense of it?
To me, that would be far scarier if there exists intelligent life forms that are nothing whatsoever relatable to humans than if we encountered humanoid alien beings from an Earth-like planet.