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  • April 13, 2018 - Napoli, Campania, Italy - in the photo the archaeological finds recovered from the carabinieri nucleus of Perugia..Italy - Naples April 13, this morning in the common hall there was the ceremony to return to the City of Naples some artistic assets stolen from the altar of the ''Temple of the Scorziata'' in 1994 and rediscovered by the Carabinieri Nucleo Tutela Cultural Heritage of Perugia . With the mayor Luigi de Magistris. (Credit Image: © Fabio Sasso/Pacific Press via ZUMA Wire)
    20180413_zaa_p133_072.jpg
  • Jun 13, 2017 - San Antonio, Texas, U.S. - Illustration - This artist illustration shows the thick ring of dust that can obscure the energetic processes that occur near the supermassive black hole of an active galactic nuclei. Researchers at the University of Texas San Antonio, using observations from NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA), found that the dust surrounding active, ravenous black holes is much more compact than previously thought. (Credit Image: ? Lynette Cook/SOFIA/NASA via ZUMA Wire/ZUMAPRESS.com)
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  • April 13, 2018 - in the picture the Mayor of Naples Luigi De MagistrisItaly - Naples April 13, this morning in the common hall there was the ceremony to return to the City of Naples some artistic assets stolen from the altar of the ''Temple of the Scorziata'' in 1994 and rediscovered by the Carabinieri Nucleo Tutela Cultural Heritage of Perugia  (Credit Image: © Fabio Sasso via ZUMA Wire)
    20180413_zap_s236_001.jpg
  • August 5, 2017 - Krakow, Poland - Celebrations of the 103rd Anniversary of the First Company establishment on August 3-5, 1914, in Krakow by Jozef Pilsudski. ..The First Company (around 150 soldiers) marched on 6 August 1914 from Krakow to Michalowice, overthrowing Russian border posts. After taking Kielce and unsuccessfully attempting to break through to Warsaw in order to provoke the uprising, the First Company returned to Krakow, becoming the nucleus of the Polish Legions.On Saturday, August 5, 2017, in Wawel Castle, Krakow, Poland. (Credit Image: © Artur Widak/NurPhoto via ZUMA Press)
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  • Phenomena across the Universe emit radiation spanning the entire electromagnetic spectrum — from high-energy gamma rays, which stream out from the most energetic events in the cosmos, to lower-energy microwaves and radio waves. Microwaves, the very same radiation that can heat up your dinner, are produced by a multitude of astrophysical sources, including strong emitters known as masers (microwave lasers), even stronger emitters with the somewhat villainous name of megamasers, and the centres of some galaxies. Especially intense and luminous galactic centres are known as active galactic nuclei. They are in turn thought to be driven by the presence of supermassive black holes, which drag surrounding material inwards and spit out bright jets and radiation as they do so.  The two galaxies shown here, imaged by the NASA/ESA Hubble Space Telescope, are named MCG+01-38-004 (the upper, red-tinted one) and MCG+01-38-005 (the lower, blue-tinted one). MCG+01-38-005 is a special kind of megamaser; the galaxy’s active galactic nucleus pumps out huge amounts of energy, which stimulates clouds of surrounding water. Water’s constituent atoms of hydrogen and oxygen are able to absorb some of this energy and re-emit it at specific wavelengths, one of which falls within the microwave regime. MCG+01-38-005 is thus known as a water megamaser! Astronomers can use such objects to probe the fundamental properties of the Universe. The microwave emissions from MCG+01-38-005 were used to calculate a refined value for the Hubble constant, a measure of how fast the Universe is expanding. This constant is named after the astronomer whose observations were responsible for the discovery of the expanding Universe and after whom the Hubble Space Telescope was named, Edwin Hubble.  
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