Optical and Infrared Observatories

• Australian International Gravitational Research Centre  - Details of the center’s research works and public outreach activities.
• Bradford Robotic Telescope  - Collection of telescopes and other astronomy instruments on Mount Teide, Tenerife.
• Center for Gravitational Wave Physics  - The goal of this organization is to improve and promote astrophysics research, and it does so by informing readers about upcoming seminars and events, explaining colloquia on theories and other topics, and displaying research accumulated.
• Institute for Astronomy, University of Hawaii  - Details of the institute's research works, applications, instrumentation, and facilities.
• Lowell Observatory  - Engages in solar system research and in studies that explore the interstellar medium and star formation.
• National Optical Astronomy Observatory  - Guide to all AURA-managed and ground-based astronomical observatories and research.
• San Diego State University Department of Astronomy and Mount Laguna Observatory  - Information about the department, its faculty and staff, educational programs, research, and lecture series.
• Shamakhy Astrophysical Observatory  - Information about their instruments, research programs and activities, and achievements. In Azerbaijan.
• Sloan Digital Sky Survey  - Presents various images taken by the astronomical survey tool.