ATLAS and Astroparticle Physics

The construction of the ATLAS detector at the LHC is nearing completion. This report will briefly summarize the progress, the technical challenges of the detector construction, and the status in the summer of 2006. The project is on track and the ATLAS Collaboration is poised to exploit the discovery potential of the LHC physics arena. Research into the fundamental nature of matter at the high energy frontier takes place in three main areas: accelerator based particle physics; high energy astrophysics; and, the cosmology of the early universe. The LHC project provides the laboratory to perform measurements of great importance for cosmic ray astrophysics and cosmology. Also, the study of astroparticle physics can have significant implications for collider physics at the LHC. This paper reviews some of the important synergistic links between astroparticle and LHC physics with the ATLAS detector.