2007/10/31 by T. W. Murphy, Jr., Thomas W. Murphy, E. G. Adelberger +17 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Gamma-ray bursts and supernovae #Geophysics and Gravity Measurements #Planetary Science and Exploration #astro-ph #gr-qc
paper · pdf · doi:10.1086/526428
published as Publ.Astron.Soc.Pac.120:20-37,2008 · 37 pages; 10 figures; 1 table: accepted for publication in PASP
arxiv created 2007/11/08 · openalex publication_date 2008/01/01 · arxiv updated 2012/08/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
A next-generation lunar laser-ranging apparatus using the 3.5 m telescope at the Apache Point Observatory in southern New Mexico has begun science operation. The Apache Point Observatory Lunar Laser-ranging Operation (APOLLO) has achieved 1 mm range precision to the moon, which should lead to approximately 1 order-of-magnitude improvements in several tests of fundamental properties of gravity. We briefly outline the scientific goals, and then give a detailed discussion of the APOLLO instrumentation.