Nasa.gov, 10 August 2012
Request for Information by September 10, 2012. Responses must be submitted in electronic form no later than September 10, 2012 to Dr. Larry Cooper, Centennial Challenges Program, NASA Headquarters, 300 E Street, SW, Washington, DC 20546–0001. E-mail address: email@example.com. For general information on the NASA Centennial Challenges Program see: http://www.nasa.gov/challenges.