Answer the following question: The National Optical Astronomy Observatory (NOAO) is the United States national observatory for ground based nighttime ultraviolet-optical-infrared (OUVIR) astronomy. The National Science Foundation (NSF) funds NOAO to provide forefront astronomical research facilities for US astronomers. However professional astronomers from any country in the world may apply to use the telescopes operated by NOAO under the NSF's open skies policy. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Company