In this theoretical artist’s conception of the Milky Way galaxy, transluscent green “bubbles” mark areas where life has spread beyond its home system to create cosmic oases, a process called panspermia. New research suggests that we could detect the pattern of panspermia, if it occurs. Credit: NASA/JPL/R. Hurt
Astrophysicists now show that if life can travel between the stars ie panspermia it would spread in a characteristic pattern that we could potentially identify. “In our theory clusters of life form, grow, and overlap like bubbles in a pot of boiling water,” says lead author Henry Lin of the Harvard-Smithsonian Center for Astrophysics (CfA).
There are two basic ways for life to spread beyond its host star...
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