Space roar

The space roar is a radio signal from outer space. Discovered by NASA's Alan Kogut and his team, space roar was announced at the 213th meeting of the American Astronomical Society on January 7, 2009. Described as a loud hiss, the team discovered the signal while trying to find traces of heat from first generation stars using an ARCADE radiometer. This instrument is designed to detect radiation at centimeter wavelengths. Though signals from radio galaxies have been detected before, the "space roar" sounds six times louder than what is predicted from those sources. Scientists have yet to explain its source. NASA scientists have currently ruled out primordial stars and all other known radio sources. The roar currently limits the study of the universe's earliest stars.

单词	Space roar
释义	Space roar 英语百科 Space roar The space roar is a radio signal from outer space. Discovered by NASA's Alan Kogut and his team, space roar was announced at the 213th meeting of the American Astronomical Society on January 7, 2009. Described as a loud hiss, the team discovered the signal while trying to find traces of heat from first generation stars using an ARCADE radiometer. This instrument is designed to detect radiation at centimeter wavelengths. Though signals from radio galaxies have been detected before, the "space roar" sounds six times louder than what is predicted from those sources. Scientists have yet to explain its source. NASA scientists have currently ruled out primordial stars and all other known radio sources. The roar currently limits the study of the universe's earliest stars.
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