We invite proposals for the use of the Arecibo 305-m telescope for the Thursday, September 6, 2018 (17:00 AST, 21:00 UTC) , deadline. These requests should be for telescope usage within the six-month (or in some cases one-year) period beginning January 1, 2019. This call does not include proposals for the use of the HF Facility for ionospheric studies. Read More

The Arecibo Observatory helped scientists demonstrate that Einstein’s theory of relativity applies even to objects with extreme gravity, such as neutron stars.

New observations by three of the world's largest radio telescopes (including the Arecibo Observatory) have revealed that an asteroid discovered last year is actually two objects, each about 3,000 feet (900 meters) in size, orbiting each other. Read More

Ubicado entre las montañas del norte de Puerto Rico, se encuentra el radar más poderoso del mundo. Científicos de diferentes partes del Planeta, utilizan el reflector de 305 metros, para recoger ondas de radio de regiones de formación de estrellas, planetas, galaxias distantes y la atmósfera. Visita el Observatorio de Arecibo y vive una noche mágica. Será un evento para toda la familia, donde habrá conferencias, estaciones educativas y observaciones de objetos astronómicos a través de los telescopios de la Sociedad de Astronomía del Caribe. Read More