Location from Foundation by Isaac Asimov
Ancient Spacer world — the first and greatest of the fifty Spacer planets, now ruins by the Foundation era. The bridge between the Robot novels and the galactic future they inadvertently created.
Aurora is Foundation's ghost — the memory of a previous human civilization that achieved technological perfection and died of it. The Spacers lived for centuries with robot servants attending their every need, and this paradise slowly killed their ambition, their adaptability, and finally their population. Aurora's estates grew emptier decade by decade until the last Spacer died in a house maintained by robots that continued their routines for centuries after their masters were gone. The connection to the Foundation series runs deep. R. Daneel Olivaw — the robot who would eventually guide the creation of Gaia — was built on Aurora. The Zeroth Law of Robotics, which allowed robots to act for humanity's collective benefit even against individual humans' wishes, was developed from Auroran philosophical debates. The Foundation's entire existence is, in a sense, Aurora's final gift: robots who outlived the Spacers spent twenty thousand years engineering a galaxy that could avoid both the Spacers' stagnation and Earth's chaos. Mycogen on Trantor preserves fragmentary memories of Aurora as sacred history. Everyone else has forgotten.
By the Foundation era: a dead world. Overgrown ruins half-consumed by vegetation, the remains of a civilization that peaked twenty thousand years ago. Crumbling estates that once housed individual Spacers with their hundreds of robots, now reclaimed by forests. Landing platforms cracked by tree roots. Atmospheric processors long since failed, the air breathable only because the planet's natural biosphere reasserted itself. In its prime: a world of sprawling estates, manicured landscapes, and robotic servants outnumbering humans thousands to one.
Also known as: the Spacer World, Aurora