The Arecibo Observatory is part of the National Astronomy and Ionosphere Center (NAIC), a national research center operated by Cornell University under a cooperative agreement with the National Science Foundation (NSF). The NSF is an independent federal agency whose aim is to promote scientific and engineering progress in the United States. NSF funds research and education in most fields of science and engineering. Additional support is provided by the National Aeronautics and Space Administration (NASA).

As the site of the world's largest single-dish radio telescope, the Observatory is recognized as one of the most important national centers for research in radio astronomy, planetary radar and terrestrial aeronomy. Use of the Arecibo Observatory is available on an equal, competitive basis to all scientists from throughout the world. Observing time is granted on the basis of the most promising research as ascertained by a panel of independent referees who review the proposals sent to the Observatory by interested scientists. Every year about 200 scientists visit the Observatory facilities to pursue their research project, and numerous students perform observations that lead to their master and doctoral dissertations.

For more on Arechibo Observatory, visit

Image courtesy of the NAIC - Arecibo Observatory, a facility of the NSF

Allen F. Blocher Planetarium
and Arthur J. Pejsa Observatory

Photo by Aaron Schaufenbuel
Photo by Aaron Schaufenbuel

The Allen F. Blocher Planetarium offers public programs throughout the summer and academic year. The Arthur J. Pejsa Observatory is open on clear evenings (M-W) when classes are in session.