Ascension Island a staging point by the British military during the Falklands War. Ascension Island hosts one of four ground antennas (others are on Kwajalein Island, Diego Garcia, and Cape Canaveral) that assist in the operation of the Global Positioning System (GPS) navigational system. NASA operates a Meter Class Autonomous Telescope (MCAT) on Ascension Island for tracking orbital debris, which is potentially hazardous to operating spacecraft and astronauts, at a facility called the John Africano NASA/AFRL Orbital Debris Observatory. In 1501, the Portuguese navigator Afonso de Albuquerque sighted the island on Ascension Day (which fell on 21 May that year) and named
5th Portuguese India Armada (Albuquerque, 1503) 5th Portuguese India Armada (Albuquerque, 1503) The Fifth India Armada was assembled in 1503 on the order of King Manuel I of Portugal and placed under the command of Afonso de Albuquerque. It was Albuquerque's first trip to India. It was not a particularly successful armada - navigational mistakes scattered the fleet on the outward journey. Ships spent much time looking for each other and several ended up travelling alone. The vanguard arrived in India just in time to rescue Portuguese-allied ruler of Cochin from a land invasion by the Zamorin of Calicut. Anticipating a new invasion, the armada erected