the idea of aliens goes back to ancient greece, when a philosopher, plato, I think it was, said that saying we were the only ones in existence was like planting a garden full of seeds and expecting only one to germinate. He does make a point… the universe is BIG, and modern scientists have found many planets that are the perfect distance from their sun to sustain life!
I’ll start with Kelper 62e. it’s one of the most Earth-like planets known, with a surface temperature of 0 centegrade, so this means it could have liquid water, a cloudy atmosphere, and even life! Kelper 62f is similar to its cousin, but a bit colder. its year is 267 days long, and scientists say it could have surface water or ice, witch, as my fellow space nerds know, is the fist step in creating life! these two exoplanets show the most promise in hosting life.
also, like I said in an earlier post, the big ear radar once picked up a signal that may or may not have been an extraterrestrial radio signal! it was even named the wow! signal. and some people have reported UFO sightings, but we can’t be certain they were telling the truth. they could have been, though! here is a link to a wikipedia page about the wow! signal:
https://en.wikipedia.org/wiki/Wow!_signal
also, remember that the universe is vast, with limitless possibilities. you never know what, or even who, is out there just waiting to be found. in my opinion, discovering aliens would do humankind good. the problem with our species is that we fight a lot, but if we realised aliens exist, then it would help us realise we’re a species, who need to work together instead of fight. and, even if I’m wrong to believe aliens exist, we should’nt fight anyway. violence solves nothing, and if we started trying compassion instead of war, the world would be a better place for evryone. and maybe if we stop, a little green figure will see, and smile down opon us.
