Extinction of species on earth is the natural rule &human extinction can occur in the foreseeable future. Human beings can migrate to other planets using anti-matter rockets &fusion rockets. Evolution of homo galacticus by archaeal symbiosis which can stand extremes of environment will occur. Human beings can also evolve into man-machine hybrids. A new species called homo galacticus or homo roboticus can evolve. This produces a civilization of superhuman homo neoneanderthalis. The homo neoneanderthalis and homo neanderthalis with its cellular archaeaons and porphyrions can interlink with the internet &computer systems as well as robots producing man-machine hybrids by quantal perception. The artificial intelligence &robotic systems gets merged with homo neoneanderthalis producing super human man-machine hybrids. The new homo neanderthalis &homo neoneanderthalis super human autistic man-machine hybrids will survive, prosper and flourish in the setting of global warming related extremophilic climate change and evolving to contact by quantal perception other galactic forms of life &civilization as well as colonising other star systems.