30 Things That Science Hasn’t Figured Out Yet

26. Are We Alone In This Universe?

Is our blue-green planet the only one in the universe that has life, or do we have friends on other planets as well? Scientists have been searching for answers, investing a lot of time and money in projects like SETI (Search for Extra-Terrestrial Intelligence) for it as well.

While we haven’t found any encouraging signs of alien life so far, that doesn’t mean we can rule out the possibility. In a universe as big and wonderful as ours, surely there can be other Earth-like planets as well that nurture life? 

While we wait for an answer, imagine what it would feel like to say hello to someone from another planet – hope they are friendly!