In the high desert east of Reno, Nevada, construction crews are flattening the golden foothills of the Virginia Range, laying the foundations of a data center city. Google, Tract, Switch, EdgeCore, Novva, Vantage, and PowerHouse are all operating, building, or expanding huge facilities nearby. Meanwhile, Microsoft has acquired more than 225 acres of undeveloped property, and Apple is expanding its existing data center just across the Truckee River from the industrial park. A new atomic clock in space could help us measure elevations on EarthIn 2003, engineers from Germany and Switzerland began building a bridge across the Rhine River simultaneously from both sides. Now, a decade after its adoption, scientists are looking to update the standard—by using the most precise clock ever to fly in space.