Music and communications chatter. Once our spacecraft are safely in orbit or in deep space cruising, it's very important that our spacecraft mission operations engineers keep in touch with them. And to issue special commands to tell the instruments where to point to know exactly where our spacecraft are. One of the critical roles of spacecraft operations is to make sure that all the data is being returned here to Goddard and to Earth safely and in a timely manner. It's also very important for our spacecraft mission operations to ensure the safety and continued proper operation of our satellite. That's why operations are critical to NASA.