I couldn’t stop hearing The Weather Girls’ “It’s Raining Men” in my head while reading this. Although, I have to admit my immature brain did change the lyrics to “It’s Raining Aliens”.
Researchers at the University of Sheffield and the University of Buckingham Centre for Astrobiology sent a balloon 27 km into the sky (for Americans not aware of the metric system, that equates to “really damn high”) during the Perseid meteor shower last year which collected particulate matter on sterile slides. Upon returning to Earth one of the slides was discovered to have captured an organism about 10 microns in size (or “really damn small”) called a “dragon particle” which analysis revealed was made of carbon and oxygen. They claim there is no way an organism could have gotten that high in the atmosphere from Earth so it must have come from space.
Naturally, there are skeptics who warn against jumping to conclusions. You can read more about this right over here: