I, Robot
"I Robot" explore various human-robot interactions, the Three Laws of Robotics, and the evolving role of robots in society and space, featuring characters like Susan Calvin.
Earth is Spherical
Careful observation revealed Earth's true shape. Ancient thinkers noted how ships disappear hull-first over the horizon and Earth's curved shadow during lunar eclipses. Pythagoras proposed a spherical Earth, and Aristotle later provided strong evidence, proving it wasn't flat.
The Caves of Steel
In Asimov's Caves of Steel, Earth detective Elijah Baley investigates a Spacer's murder with his unusual partner, the humanoid robot R. Daneel Olivaw.