Today, Tuesday, December 7, 2021, the U.S. Space Force’s Space Test Program Satellite-6 launched from Kennedy Space Center on Florida’s space coast. The spacecraft contains a revolutionary space communications mission, NASA's Laser Communications Relay Demonstration, or LCRD.

The Invisible Network: LCRD: The Launch

Hello, we’re NASA. You may have seen our astronauts, rocket launches, or Mars rovers — but have you heard our sounds? From interviews with astronauts and engineers to stories that take you on a tour of the galaxy, NASA’s audio offerings let you experience the thrill of space exploration without ever leaving Earth.