Being on top isn't always what it's cracked up to be. Nvidia helped pioneer the use of graphics processors once used mainly for videogaming into powerful chips that now enable artificial intelligence capabilities in data centers. It remade its own business in the process; annual revenue has grown more than five fold since before the data center business began to take off in 2016. Nvidia also became the most valuable semiconductor company in the world, with a market capitalization higher than at least five other chip companies that generate more in annual revenue.

Wilkinson recently had a close call when a shark trailed him, only inches away. Wilkinson recently had a close call when a shark trailed him, only inches away. The surfer had no idea a shark was trailing him. Near Sharpes Beach in Australia, professional surfer Matt Wilkinson was paddling on his board on Wednesday. Unbeknownst to him, a shark quickly surfaced and began stalking the surfing world champion, at one point only inches away.

DUBAI, UNITED ARAB EMIRATES – An unarmed Iranian drone shadowed a U.S. aircraft carrier at night and came close enough to F-18 fighter jets to put the lives of American pilots at risk, the Navy said Tuesday, reporting the second such tense encounter within a week. The Iranian Sadegh drone flew without any warning lights during the encounter Sunday night with the USS Nimitz, said Lt. Ian McConnaughey, a spokesman for the Bahrain-based 5th Fleet. The drone did not respond to repeated calls over the radio and came within 1,000 feet (300 meters) of U.S. fighters, he said. That "created a dangerous situation with the potential for collision and is not in keeping with international maritime customs and laws," McConnaughey said in a statement. The drone was unarmed, the lieutenant said, though that model can carry missiles. Iran's military and state-run media did not immediately report the incident, which came after a similar encounter Aug. 8, in which the Navy said an Iranian drone came within 100 feet (30 meters) of an F-18 preparing to land on the Nimitz.

The Federal Aviation Administration exists to keep the skies safe for people. In the past two years, that task has grown much more complex. The FAA added an unprecedented number of new pilots: 770,000 registered drone operators, which is almost 200,000 more than the 584,000 total pilot certificates held in 2016. As one might expect, that massive increase in people operating flying machine is accompanied by a jump in how many pilots saw strange airborne objects. What didn't change, even as hundreds of thousands of drones joined the skies over the United States, is the number of dangerous close encounters with drones.