"You can conceive of life where homochirality is not so widespread," said Sandra Pizzarello, an Arizona State University biochemist who was not involved in the study.

“你可以构想出某种生命群体，而同手性在其中比不是那么广泛分布的，”亚利桑那大学的生化学家桑德拉。皮萨尔罗说，她本人并未参与此项研究。