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ensure accuracy. New Worlds, New Horizons in Astronomy and
Astrophysics eral dark energy projects including the Baryon
Oscillations Spectroscopic Survey on the Apache Point
Observatory 2.5-meter telescope, and a new Dark Energy Camera to
be installed on the 4-meter Blanco Telescope at the Cerro Tololo
Inter-American Observatory in Chile, small but pioneering
efforts on CMB research, and R&D for upcoming projects. Many of
these investments are collaborative with either NASA or NSF
(NSF-AST and NSF-PHY). In addition, DOE supports a vibrant
program of underground dark matter direct-detection experiments
and related research and development as part of the cosmic
frontier core area. DOE also continues to provide adaptive
optics (AO) expertise for instruments on ground-based
telescopes. High-energy-density facilities of its National Nu