Email Print Share

Press Statement 17-008

Arecibo: Statement on NSF Record of Decision

Decision formalizes NSF’s preferred path for maintaining science operations

The Arecibo Observatory in Puerto Rico.

The Arecibo Observatory in Puerto Rico.

November 16, 2017

On Nov. 15, 2017, the National Science Foundation (NSF) signed its Record of Decision for the Arecibo Observatory in Puerto Rico. This important step concludes the agency's decision-making process with respect to the general path forward for facility operations in a budget-constrained environment and provides the basis for a future decision regarding a new collaborator.

NSF issued its Record of Decision following authorization from the National Science Board on Nov. 9, 2017. That followed an extensive environmental impact analysis and broad input from the public and the scientific community, including the National Academies 6th Decadal Survey released in 2010, the NSF Division of Astronomical Sciences Portfolio Review Committee Report released in 2012 and the NSF Geospace Sciences Portfolio Review Committee Report released in 2016.

The decision formalizes the selection of NSF's preferred alternative: to collaborate with interested parties to maintain science-focused operations at the observatory with reduced agency funding. This plan will allow important research to continue while accommodating the agency's budgetary constraints and its core mission to support cutting-edge science and education.

NSF remains deeply concerned about the impacts from recent hurricanes on Arecibo Observatory staff, the facility and all citizens of Puerto Rico. The Record of Decision arrives at a challenging time, but is necessary for the agency to secure a future for the observatory. It will allow negotiations to begin with potential collaborators who may take over management and operations as NSF funding for the observatory is reduced.


Media Contacts
Aya Collins, NSF, (703) 292-7737, email:

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2018, its budget is $7.8 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives more than 50,000 competitive proposals for funding and makes about 12,000 new funding awards.

mail icon Get News Updates by Email 

Useful NSF Web Sites:
NSF Home Page:
NSF News:
For the News Media:
Science and Engineering Statistics:
Awards Searches: