In the summer of 2257, the asteroid Wormwood was closing in to strike Earth a glancing blow. Even a glancing blow would be catastrophic. Earth's governments and militaries united to try to shift Wormwood's path. Earth launched every nuclear missile she had and succeeded in changing its path, just enough to miss her surface. In doing so, shards from the asteroid, caused by the nuclear blasts, struck the earth. In those shards were spores that caused...