Our new 'Word Of The Day' article update : barracks emperor , n :
(Ancient Rome, historical) An emperor who seized power by virtue of his command of the army. The Western Roman Empire is conventionally regarded as having fallen on this day in 476 C.E., when Odoacer deposed the 16-year-old Emperor Romulus Augustulus.

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Astronomy news update from NASA :
Are Saturn's auroras like Earth's? To help answer this question, the Hubble Space Telescope and the Cassini spacecraft monitored Saturn's North Pole simultaneously during Cassini's final orbits around the gas giant in September 2017. During this time, Saturn's tilt caused its North Pole to be clearly visible from Earth. The featured image is a composite of ultraviolet images of aurora and optical images of Saturn's clouds and rings, all taken recently by Hubble. Like on Earth, Saturn's northern auroras can make total or partial rings around the pole. Unlike on Earth, however, Saturn's auroras are frequently spirals -- and more likely to peak in brightness just before midnight and dawn. In contrast to Jupiter's auroras, Saturn's auroras appear better related to connecting Saturn's internal magnetic field to the nearby, variable, solar wind. Saturn's southern auroras were similarly imaged back in 2004 when the planet's South Pole was clearly visible to Earth.

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Our new 'Word Of The Day' article update : thrice , adv :
(dated) Three times.