Why the electric-car revolution may take a lot longer than expected | | A new MIT analysis sharply contradicts the conclusion that electric vehicles could get as cheap as their gas-powered rivals in the next five years. Read more → | | Ghost ships, crop circles, and soft gold: A GPS mystery in Shanghai Read more → | Listen to the sound of Earth's magnetic field as it's pummeled by a solar storm Read more → | | Have you purchased your ticket to EmTech Digital? Join us as we bring together leaders from academia, enterprise, and government to examine the most pressing AI issues of today.. Register now | | | | | |