astroengine writes: ""Panspermia" is the hypothesis that life is spread from planet-to-planet and star system-to-star system through some cosmic means. But for panspermia to work, this life needs to be sufficiently protected (and, um, kept alive) from the worst the universe can throw at it (such as radiation, cold and vacuum). Alas, when considering interstellar hops, the timescales are likely too long (i.e. millions of years) and said life will be dead on arrival. What good are tiny alien corpses when the panspermia model is supposed to seed new worlds with new life? Enter a new incarnation of pansermia: "Necropanspermia." Conceived by Paul Wesson, of Herzberg Institute of Astrophysics in Canada, necropanspermia is the transfer of the information of life to new worlds, wriggling extraterrestrial bacterium not required."