SAN FRANCISCO--(BUSINESS WIRE)--Voxer, developer of the mobile messaging application combining the best of voice, text, photo and video messaging technology, announced today that NASA is using the Voxer application as its primary means of voice communications for NASA Extreme Environment Mission Operations (NEEMO) project 20, which began Monday, July 20 and concludes August 2. NEEMO missions send astronauts, engineers and scientists to live in Aquarius, the world’s only undersea research statio