http://redlib.r4focoma7gu2zdwwcjjad47ysxt634lg73sxmdbkdozanwqslho5ohyd.onion/r/Damnthatsinteresting/comments/1k19w6w/scientists_find_strongest_evidence_yet_of_life_on
On the other hand, if you want to get philosophical about it, we don't even know how much the universe we can see. We know that some of the universe is already beyond the time by distance limit implied by the speed of light, and can never be detected.