All 5 fundamental units of life’s genetic code were just discovered in an asteroid sample

Wow. Scientists have looking for what defines life. They came up with 5 "fundamental units of life" that are genetic markers that establish the baseline. 

And they have found all 5 of the returned sample from the asteroid Ryugu. Which suggests that life could exist beyond the earth. It doesn't mean it does, of course, it just shows that the things that make life do exist elsewhere. 

https://theconversation.com/all-5-fundamental-units-of-lifes-genetic-code-were-just-discovered-in-an-asteroid-sample-278099