National Aeronautics and Space Administration Reports for October 2007

• GAO-08-183T - Geostationary Operational Environmental Satellites (2007-10-23)
  Further Actions Needed to Effectively Manage Risks
• GAO-08-18 - Geostationary Operational Environmental Satellites (2007-10-23)
  Progress Has Been Made, but Improvements Are Needed to Effectively Manage Risks
• GAO-08-216T - Aviation and the Environment (2007-10-24)
  Impact of Aviation Noise on Communities Presents Challenges for Airport Operations and Future Growth of the National Airspace System
• GAO-08-51 - NASA (2007-10-31)
  Agency Has Taken Steps Toward Making Sound Investment Decisions for Ares I but Still Faces Challenging Knowledge Gaps