"Its occurrence is like finding a tropical seed in Arctic ice – indicating either an unexpected local environment or long-distance transport in the early solar system."

'Like finding a tropical seed in Arctic ice': How a surprise mineral could change the history of asteroid Ryugu

Source: space
Source Link: https://www.space.com/astronomy/asteroids/like-finding-a-tropical-seed-in-arctic-ice-how-a-surprise-mineral-could-change-the-history-of-asteroid-ryugu