Nova Science Now: What's the Next Big Thing: Host Neil deGrasse Tyson will tackle one of science s major challenges in each episode, framed as a simple question that ordinary people wonder and worry about. Neil will guide us as he explores dramatic discoveries and the frontiers of research that connect each central, provocative mystery. Episode includes: 1) Social Robots - Would you want a robotic friend who could chitchat, do chores, even take care of you? Such bots may be here soon. 2) Robotic Cars - Tiny, battery-powered cars called EN-Vs, now in R&D, can talk to each other, come when called, even drive themselves. 3) Detecting Earthquakes - Can we predict earthquakes? NOVA scienceNOW visits Haiti and California in search of answers.