It’s amazing to think there are telescopes up in space, right now, directing their gaze at distant objects for hours, days and even weeks. Providing a point of view so stable and accurate that we can learn details about galaxies, exoplanets and more. And then, when the time is up, the spacecraft can shift its gaze in another direction. It’s all thanks to the technology of reaction wheels and gyroscopes. 06:49 Scientists May Have Figure Out Why So Many Spacecraft Were Failing - https://www.youtube.com/watch?v=KibT-PEMHUUOur Book is out!