Ever since 2012, scientists have been leaning on the Yellowstone supercomputer to model and predict climate. It's a powerful ally, especially when it's still one of the fastest computers on the planet. However, it's about to be upstaged: the US National Center of Atmospheric Research has unveiled plans to build Cheyenne, an even beastlier machine. When it's ready in 2017, the Silicon Graphics-made, Intel Xeon-powered supercomputer should calculate up to 5.34 petaflops per second, or 2.5 times more than Yellowstone. It'll also have a whopping 313TB of memory, and 20 petabytes (!) of dedicated storage.