Alexander Weygers and his Discopter.

Engineer and adventurer Richard Jenkins has made oceangoing robots that could revolutionize fishing, drilling, and environmental science. His aim: a thousand of them.

Inside Stripe’s battle to upend the online payments world.

Google and Tesla are spending billions to develop driverless technology. George Hotz used an Acura.

Lowell Wood helped bring down the Soviet Union, has created what could be the first concussion-free football helmet, and has regular brainstorming sessions with Bill Gates. He also drives a 20-year-old Toyota with 300,000 miles on it.

When Elon Musk went to Russia to buy some rockets.

The growth of an immersive universe that is “part game and part soap opera and part shadow economy.”

Around the world, governments and corporations are in a race for code that can protect, spy, and destroy—hacks some secretive startups are more than happy to sell.

“The best minds of my generation are thinking about how to make people click ads.”