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Breakthrough Listen is a ten-year $100 million initiative by Russian tycoon Yuri Milner to search for intelligent extraterrestrial life in the Universe. It is part of Milner's Breakthrough Initiatives, and was announced alongside Breakthrough Message. It has been described as the most comprehensive search for alien communications to date.〔 == Features == One-third of the funding will be used to obtain radio telescope time, one-third will be used to fund research and development of new receiver technology, and one-third will be used to hire astronomers. The project will use thousands of hours every year on two major radio telescopes, the Green Bank Observatory in West Virginia and the Parkes Observatory in Australia. Previously, only about 24 to 36 hours of radio telescope time per year was used in the search for alien communications.〔 The project will be allocated approximately 20% of the annual observing time of the Green Bank Telescope from early 2016, in return for around $2 million per year of funding. Similarly, the project will be allocated approximately a quarter of the observing time on the Parkes Telescope in Australia from October 2016 for a period of five years. Together, the radio telescopes will cover ten times more sky than previous searches and scan the entire 1-to-10 GHz range, the so-called "quiet zone" in the spectrum where radio waves are unobscured by cosmic sources or Earth’s atmosphere. The radio telescopes have the sensitivity to detect a transmitter of the same power as a common aircraft radar within the 1,000 nearest stars. The project plans to search the closest one million stars to Earth, and also scan the center of the galaxy and the galactic plane. The project will also search the nearest hundred galaxies. Milner estimates that the project will generate as much data in one day as previous SETI projects generated in one year.〔 All data will be made publicly available, in order to allow enthusiasts to help process the data and to ensure transparency. The project will partner with SETI@home to help process the data.〔 In addition to the search for radio waves, the Automated Planet Finder of Lick Observatory will search for optical signals coming from laser transmissions. The telescope has the sensitivity to detect a 100 watt laser from a star 25 trillion miles (4.25 light years) away.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Breakthrough Listen」の詳細全文を読む スポンサード リンク
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