Are aliens real? We don't know for sure, but we want to believe.

Outer space is a vast expanse that we have so much more to learn about, which is why it's hard to flat-out deny the possibility that other intelligent lifeforms exist. New species are continually being discovered in the ocean, and some animals thought to be long gone have emerged from the thick cover of jungles and the deep sea to be rediscovered.

If life can exist—and persist—in seclusion and in some of the harshest conditions on Earth (just look at tardigrades), it's likely that other interplanetary lifeforms have evolved and acclimated to conditions in space, too.



The renowned science writer Arthur C. Clarke once said, "Two possibilities exist: Either we are alone in the universe or we are not. Both are equally terrifying." Several discoveries and theories from some of the greatest minds in science point to the likelihood that there is something beyond us in the universe, so there's a pretty decent chance we have neighbors somewhere in the ether. Consider the evidence.