It’s hard to take a picture of a moving target —just ask any parent. Scientists have the same problem with plant roots under the microscope. But now, one team has come up with a unique technique that lets microscopes automatically track moving objects, which they used to follow the growing roots of these tiny plants. By using lasers and glowing proteins to piece together images in three dimensions, they even created 3D videos of how the cells in root tips grow and split over the course of days. The team created a special lighting system to keep the plants healthy, and turned their microscope on its side so the plants could grow upright. A rotating plate allowed them to study how gravity changes root growth, which could one day help scientists understand the best ways to grow plants in space. But the invention isn’t restricted to roots. The team also used this technique with a different microscope to watch how cells move around in zebrafish embryos. And since they released their program for free, other scientists can use it to capture stunning new perspectives of just about anything that moves.