Star People

The survivors agreed that massive changes were necessary to ensure that such a war never occurred again. These reforms were so comprehensive that they entailed not political, economical but biological changes as well.
One of the greatest differences between the people of the two planets was that over time, they had almost become different species. It was believed that the solar system could never completely unify until this discrepancy was overcome.
The answer was a new human subspecies, equally and better adapted not only to Earth and Mars, but to the conditions of most newly terraformed environments as well. Furthermore, these beings were envisioned with larger brains and heightened talents, making them greater than the sum of their predecessors.
Normally, it would be hard to convince any population to make a choice between mandatory sterilization and parenting a newfangled race of superior beings. However, memories of the war were still painfully fresh, and it was easier to implement these radical procedures in the wake of such slaughter. Any resistance to the birth of the new species did not extend beyond meager complaints and trivial strikes.
In only a few generations, the new race began to prove its worth. Organized as a single state and aided by the technological developments of the war, they rapidly terraformed and colonized Venus, the Asteroids and the moons of Jupiter and Saturn.
Soon however, even the domain of Sol grew too small. The new people who inherited it wanted to go further, to new worlds under distant stars. They were to become the Star People.