The discovery of cosmic background radiation wasn't commercially viable either. https://www.bell-labs.com/about/history-bell-labs/stories-changed-world/Cosmic-

The discovery of cosmic background radiation wasn't commercially viable either. https://www.bell-labs.com/about/history-bell-labs/stories-changed-world/Cosmic-Microwave-Background-Discovery/ https://www.bell-labs.com/about/history-bell-labs/stories-ch...