Your Evening Briefing

The day when drones deliver pizzas and packages to homes is fast approaching. One of the biggest obstacles in their race to the future? The weather. Current forecasts don’t have anywhere near the granularity needed to successfully operate delivery drones through changing conditions. The push is on for a weather report so precise it can predict wind gusts block by block.—Katie Robertson

Uber CEO relinquishes power after investor mutiny. Travis Kalanick has resigned from his job leading Uber, giving up on his effort to hold onto power as a torrent of self-inflicted scandals enveloped him and the global ride-hailing leviathan he co-founded. Pressure from investors, who have poured more than $15 billion into the company, ultimately did what the board could, or would, not: It convinced the 40-year-old chief executive to step aside. Uber is now in need of a new CEO, and Sheryl Sandberg's name is on the wish list, though a source says she isn't leaving her job as second-in-command at Facebook.