A fringe theory called "panspermia" suggests that lifeforms can spread to new planets by hitching rides on meteors. New research lays out a roadmap for finding where these hypothetical, planet-hopping aliens may reside.

The origin of life on Earth is a profound mystery - including when it started and how the ingredients for it were assembled. And a new study aimed at answering the latter question finds that some building blocks didn't need to have formed on Earth, but could have arrived from space. The study, published AprilContinue reading "Evidence grows that meteorites, comets could have brought essentials of life to early Earth" The post Evidence grows that...