A:
Astrophysics Data System (NASA) - Digital Library for Physics, Astrophysics, and Instrumentation. [Multiple agencies involved, Harvard University]

B:
BaBar Experiment - Particle physics experiment investigating the matter-antimatter asymmetry in nature. [U.S. Department of Energy (DOE), Stanford Linear Accelerator Center (SLAC)]

C:
Center for Earth and Planetary Studies - Research and outreach activities on topics covering planetary science, terrestrial geophysics, and the remote sensing of environmental change. [Smithsonian Institution]

Ciencia@NASA - Spanish translations of stories from Science@NASA. [National Aeronautics and Space Administration (NASA)]

F:
FusEdWeb Fusion Energy Education - A fusion energy educational website about our sun, other stars and galaxies, and inertial and magnetic confinement [U.S. Department of Energy (DOE), Princeton Plasma Physics Laboratory (PPPL)]

H:
High Energy Physics (HEP) Reviews - A guide to review literature in the field of HEP and astrophysics with useful articles selected and categorized by physicists at SLAC and Fermilab. [U.S. Department of Energy (DOE), Fermi National Accelerator Laboratory (FNAL), Stanford Linear Accelerator Center (SLAC)]

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)]

I:
Inquiring Minds - Discusses particle physics in general and the work done at Fermilab in particular, with Fermilab Physicist chats and Virtual Ask-A-Scientist [U.S. Department of Energy (DOE), Fermi National Accelerator Laboratory (FNAL)]

Institute for Nuclear and Particle Astrophysics (INPA) - Unites LBL research in astrophysics, including solar neutrinos, cosmic rays, dark matter, supernovae, cosmic background radiation and theoretical astrophysics [U.S. Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL)]

N:
Nuclear Science at LBNL - Conducts basic research, at all energies, aimed at understanding the structure and interactions of nuclei and the forces of nature as manifested in nuclear matter [U.S. Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL)]

P:
Particle Data Group (PDG) - Reviews particle physics and related areas of astrophysics, and compiles/analyzes data on particle properties [U.S. Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL); U.S. National Science Foundation (NSF)]

Primer on Space Weather - Information on solar flares, Coronal Mass Ejections (CMEs,) and magnetic storms and their effects on the earth. [U.S. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA)]

S:
Science@NASA - Stories about NASA research activities and results. [National Aeronautics and Space Administration (NASA)]

Smithsonian Astrophysical Observatory - The world's largest and most diverse center for the study of the Universe, comprising the astronomy and astrophysics programs of two renowned scientific institutions: the Smithsonian Institution and Harvard University. [Smithsonian Institution]

Smithsonian Science - Highlights of the Smithsonian Institution’s scientific research in the fields of anthropology, astrophysics, conservation biology, geology, materials science, paleontology and zoology. [Smithsonian Institution]

Supernova Acceleration Probe (SNAP) - SNAP (Supernova Acceleration Probe) is an advanced observatory that is being proposed for the Joint Dark Energy Mission to measure the dark energy of the universe [U.S. Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL)]

Supernova Cosmology Project - Discovers and studies distant Type IA supernova to increase our understanding of the universe. [U.S. Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL)]

T:
TOPCited High-Energy Physics Articles - Annual lists of the most highly cited papers in High Energy Physics and Astrophysics literature including reviews by SLAC and Fermilab physicists [U.S. Department of Energy (DOE), Stanford Linear Accelerator Center (SLAC)]

The Institute of Geophysics and Planetary Physics (LANL) - Promotes and supports high quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience, and complex dynamical earth systems [U.S. Department of Energy (DOE), Los Alamos National Laboratory (LANL)]

The Universe Adventure - Introduces the user to Cosmology: the study of the structure, history, and fate of the Universe [U.S. Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL)]

Thomas Jefferson National Accelerator Facility (JLAB) - Conducts basic research of the atom's nucleus at the quark level [U.S. Department of Energy (DOE), Thomas Jefferson National Accelerator Facility (JLAB)]