The phrase "extraterrestrial origin" means that something is from or related to somewhere outside our planet Earth, like outer space or another celestial body. Full definition
A zombie outbreak of extraterrestrial origin strikes rural Australia in this ambitious and successful debut from the Spierig brothers -LRB--RRB-, which mines humor in small - town personalities placed in unusual circumstances. (thoughtco.com)
We are of extraterrestrial origin which means we all have the capability of extremely amazing intelligence. (religion.blogs.cnn.com)
The findings, Haggerty says, boosted the theory of carbonados» extraterrestrial origin from 4 to 9 out of 10 on the credibility scale. (discovermagazine.com)