Imagine cruising down the highway when suddenly a massive, self-driving 18-wheeler pulls up beside you. No human in the driver's seat, just sensors and computers guiding this 40-ton behemoth down the ...

For our next story, we're going inside the cab of a big rig. The U.S. needs more truck drivers, and right now, new technology is promising to help those drivers or to replace them. NPR's Camila ...

There are active test runs in Texas, and a handful of companies are banking on making a big entry into the market as early as ...