A:
Astronomy -- Selected Internet Resources - Selected Internet Resources -- Astronomy. Science Reference Services; Science Reference Section; Library of Congress [U.S. Library of Congress (LOC)]

C:
Chemical Propulsion Information Analysis Center (CPIAC) - The Chemical Propulsion Information Analysis Center (CPIAC) is the DoD Center of Excellence responsible for acquiring, archiving, analyzing, synthesizing, and disseminating scientific and technical information related to system and component level technologies for chemical, electrical, and nuclear propulsion for rockets, missiles, and space and gun propulsion systems. [U.S. Department of Defense (DOD), Defense Technical Information Center (DTIC)]

D:
Digitized Videos in ARC - Through the NARA partnership with Google, 101 historical videos are available for viewing and download in ARC. The videos are related to space flights, world wars, national and state park features. [U.S. National Archives and Records Administration (NARA)]

H:
Hubble: A New Beginning - Webcast - Presentation at the Library of Congress by Dave Leckrone, astrophysicist, NASA Hubble Space Program. [U.S. Library of Congress (LOC)]

K:
Kepler Mission - Kepler Mission to find Earth-size planets in the habitable zones of stars [National Aeronautics and Space Administration (NASA)]

L:
Lunar Reconnaissance Orbiter - The Lunar Reconnaissance Orbiter (LRO) is the first mission in NASA's Vision for Space Exploration, a plan to return to the moon and then to travel to Mars and beyond. [National Aeronautics and Space Administration (NASA)]

M:
Mars Reconnaissance Orbiter - NASA's mission to study the history of water on Mars [National Aeronautics and Space Administration (NASA), Jet Propulsion Laboratory (JPL)]

Mars Update: Webcast - A Webcast of a presentation by Mars Update. James Garvin, NASA, who spoke about recent research and plans for Mars exploration. [U.S. Library of Congress (LOC)]

N:
NASA - Messenger - Information about NASA mission to Mercury, the closest planet to the Sun [National Aeronautics and Space Administration (NASA)]

NOAA Unmanned Aircraft System - This site provides information about measures that effect the world that can only be discovered via unmanned aircrafts. The system established test bed research and operations for climate change, hurricanes, Pacific storms, fisheries enforcement, and protection of marine sanctuaries and endangered species. [U.S. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA)]

NTRS (NASA Technical Reports Server) - Search for reports, journal articles, and conference proceedings [National Aeronautics and Space Administration (NASA)]

S:
Suomi National Polar-orbiting Partnership - The next generation satellite system that collects and distributes remotely-sensed land, ocean, and atmospheric data. [National Aeronautics and Space Administration (NASA)]