Australian country music international hit "Armstrong", a tribute to the historic 1969 moon landing by American astronaut Neil Armstrong is now included in a time capsule at the Johnson Space Center in Houston, Texas. Ted Egan (AM) began recording in 1969 and has released 28 albums, mostly themed around outback life, history and Aboriginal affairs. Eric Bogle's 1972 folk lament to the Gallipoli campaign "And The Band Played Waltzing Matilda" recalled the Celtic origins of Australian folk-country. Singer-songwriter John Williamson, (OAM) began to build his reputation as an iconic Australian entertainer with his 1970 performance of his first song "Old Man Emu" on
Radio telescope fully steerable single-dish radio telescope with a diameter of . A typical size of the single antenna of a radio telescope is 25 meters. Dozens of radio telescopes with comparable sizes are operated in radio observatories all over the world. Since 1965, humans have launched three space-based radio telescopes. In 1965, the Soviet Union sent the first one called Zond 3. In 1997, Japan sent the second, HALCA. The last one was sent by Russia in 2011 called Spektr-R. One of the most notable developments came in 1946 with the introduction of the technique called astronomical interferometry, which means combining