Centauri Dreams: "Thus we construct another possible mechanism for moving life between worlds. If these notions prove robust, the expectation of finding life elsewhere in the Solar System receives a boost, but notice that Dehel is talking about bacterial transfers occurring not just between planets in the same system but between stars. Thanks to Luke Schubert for the link to this story, which reminds this writer that theories long discarded sometimes surface with renewed vigor. Panspermia in various forms is a case in point, one that raises the question of just how unfamiliar extraterrestrial life may be."
21 minutes ago