A "gateway to authoritative selected science information provided by U.S. Government agencies, including research and development results." Besides government-sponsored websites, Science.gov also includes "databases of technical reports, journal articles, conference proceedings, and other published materials."

Broad subject areas include:

• Agriculture & Food
• Applied Science & Technologies
• Astronomy & Space
• Biology & Nature
• Computers & Communication
• Earth & Ocean Sciences
• Energy & Energy Conservation
• Environment & Environmental Quality
• Health & Medicine
• Math, Physics, & Chemistry
• Natural Resources & Conservation
• Science Education