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More than 50 years ago William E. Gordon started with a vision to build the largest radio telescope on earth.
Learn more about the Arecibo Observatory

Who we are, our history, mission and values

Latest News

International Observe the Moon Night
El Centro de Ciencias y Visitantes Fundación Ángel Ramos los invita a celebrar!

Observatorio de Arecibo celebra el lanzamiento de OSIRIS-REx
El Observatorio de Arecibo y la NASA se unen en la misión

AOSA Stories
My name is Wilbert Andres Ruperto Hernández and I’m 16

The Arecibo Observatory Asteroid Day
Join us in celebrating International Asteroid Day!

The Arecibo Observatory Science & Visitors Center reopens with new interactive exhibits
The exploration of the earth and the Solar System, the