Dr. Julie Brisset

Principal Investigator of the Arecibo Observatory

Olga Figueroa

Director of the Arecibo Observatory


Discover the latest in our fields of science or explore what the future holds for AO!

UPCOMING EVENTS & Announcements

.: #AOScienceNow

Check out the facilities that are currently operational at the Arecibo Observatory and available for interested investigators and students that would like to use them for their corresponding research work.

:. Under Development

Check out the programs, facilities and instruments that are currently under development at the Arecibo Observatory.

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Single Dish Summer School

The first hybrid Single Dish Summer School gave students across the country the chance to learn how to process data from the Arecibo Observatory. + Read More

The Biggest Dream - Movie

The Biggest Dream debuted on December 1st at the Arecibo Observatory and On December 2nd in 11 movie theaters across Puerto Rico. We are working to make the movie available globally. See the trailer and learn more about our efforts to bring this documentary to you: Share The Legacy

STAR Academy

Graduates of the AO STAR Academy are pursuing STEM careers and solidifying their scientific identity +Read More


REU Program 2022

AO welcomed a new group of students this summer for the Research Experience for Undergraduates (REU) Program! Here’s what they had to say about their experience. +Read More



We are looking for students for our new ENCANTO program: Enhancing and Nurturing Careers in Astronomy with New Training Opportunities! Applications due August 31st. +Read More

:. Education & Public Outreach

Our plans for the future include the incorporation of technology, and incursion of new STEAM areas while promoting the research, discoveries and legacy of the Arecibo Observatory.


Arecibo Intern in Planetary Radar

As an intern at Arecibo, Luis Rivera Gabriel identified the best-quality radar datasets for followup studies of near-Earth asteroids. +Read More


Summer greetings from the Facilities and Operations Team

The Facilities and Operations team has been hard at work on several maintenance and improvement projects. Of highest priority is the Arecibo Restoration Project which includes several subprojects including Optical Lab Repairs, Erosion Control Measures, HF, Security Cameras, 12m Repairs, and more. + Read More

:. Recent Posts

Get the scoop on recent news or obtain necessary documentation for production shoots. For further inquiries, contact us!


Space Weather Forecasting from AO

Space weather can have a significant impact on GPS and Communication satellites at Earth. Understanding the solar activity that produces these events is becoming increasingly important. Using the 12-m telescope and Callisto radio spectrometer, AO is making unique contributions to this important area of study. + Read More

Exciting updates for Arecibo’s Remote Optical Facility

Summer 2022 updates for the Puerto Rican Initiative for Studies using Meteor Radar (PRISMA) and Culebra Aerosol Research LIDAR (CARLA) project has achieved first light! + Read More

12m Antenna

The 12 meter radio telescope at AO makes new measurements of the radio continuum + Read More Cryogenic frontend work on the 12-m antenna enters Phase II. + Read More

Arecibo Deputy Principal Scientist to Explore the Cosmos with the JWST

Learn more about the research she will be conducting and to see a documentary about JWST science in which Dr. Pinilla-Alonso is featured.


Piercing through the Clouds of Venus with Arecibo Radar

New results exploring the surface of Venus with Arecibo and Magellan Radar studies. Lead author Dr. Bruce Campbell talks about the importance of using Arecibo for this research work. + Read More


Happy Asteroid Day (June 30th)!

The need for continued eyes on rocks in space was emphasized in 2019 when an undetected, relatively large asteroid surprised astronomers with an unexpected close flyby of the Earth. We now know much more about that asteroid, thanks to a recent publication led by AO’s Luisa Zambrano-Marin, that details the analysis of the quickly-obtained Arecibo radar data following the asteroid’s discovery. + Read the Press Release

240th American Astronomical Society Meeting

What is it like to attend the AAS meeting? AO Data Analyst Anna McGilvray shares more about her experience.
+ Read More

Highlights & Presentations

  • Dr. Héctor Arce gave the Plenary Lecture Building the Future of Radio Science with the Arecibo Observatory.
    + Read More

  • AAS Splinter Meeting: The Arecibo Observatory, An Engine For Science and Scientists In Puerto Rico And Beyond:
    + Read More


Advancing IDEA in Planetary Science Conference: AO-related Presentations

Two Arecibo-focused presentations supporting Inclusion, Diversity, Equity and Accessibility (IDEA) were given at the Advancing IDEA in Planetary Science virtual conference in April. + Read More


CEDAR: Highlights and Presentations

The workshop “Advances in atmosphere vertical coupling and its relationship with ionosphere-thermosphere oscillatory phenomena (TAD/TID/MSTIDs)” was organized by Arecibo Observatory scientists Dr. Pedrina Terra, Dr. Christiano Brum, and Dr. Sukanta Sau in collaboration with Dr. Dustin Hickey from NRL. + Read More


NASA’s Small Bodies Assessment Group (SBAG) Meeting: AO-related Presentation

NASA’s Small Bodies Assessment Group (SBAG) met on June 7-9th, 2022 for the first meeting following the release of the Planetary Science and Astrobiology Decadal Survey. The hybrid meeting took place in Washington D.C. and virtually. + Read More


TRENDS 2022 Workshop: Highlights from the meeting

The 11th International Workshop on Long-Term Changes and Trends in the Atmosphere (TRENDS 2022) was held at the Space and Earth Observation Centre, Finnish Meteorological Institute (FMI), Helsinki, Finland from May 30th - June 3rd. + Read More