jueves, 4 de julio de 2019
DW - Deutsche Welle Live TV (Deutsch)
Die Deutsche Welle (DW) ist Deutschlands internationaler Sender und eine weltweit geschätzte Quelle für verlässliche Informationen. Das deutsche TV-Programm mit klarem Kulturprofil ist Ihr direkter Draht nach Deutschland und Europa in deutscher Sprache. Rund um die Uhr sehen Sie Magazine und Reportagen, Talks aus Kultur und Gesellschaft, Wissen und Lebensart, Unterhaltung und Nachrichten. DW (Deutsch) bringt Ihnen erstklassiges Programm. Made in Germany. Made for Minds.
miércoles, 3 de julio de 2019
Hubble Legacy Field Zoom-Out
Astronomers have put together the largest and most comprehensive "history book" of galaxies into one single image, using 16 years' worth of observations from NASA's Hubble Space Telescope.
The deep-sky mosaic, created from nearly 7,500 individual exposures, provides a wide portrait of the distant universe, containing 265,000 galaxies that stretch back through 13.3 billion years of time to just 500 million years after the big bang. The faintest and farthest galaxies are just one ten-billionth the brightness of what the human eye can see. The universe's evolutionary history is also chronicled in this one sweeping view. The portrait shows how galaxies change over time, building themselves up to become the giant galaxies seen in the nearby universe.
This ambitious endeavor, called the Hubble Legacy Field, also combines observations taken by several Hubble deep-field surveys, including the eXtreme Deep Field (XDF), the deepest view of the universe. The wavelength range stretches from ultraviolet to near-infrared light, capturing the key features of galaxy assembly over time.
The video begins with a view of the thousands of galaxies in the Hubble Ultra Deep Field and slowly zooms out to reveal the larger Hubble Legacy Field, containing 265,000 galaxies.
Credits: NASA, ESA, G. Illingworth (University of California, Santa Cruz) and G. Bacon (STScI)
The deep-sky mosaic, created from nearly 7,500 individual exposures, provides a wide portrait of the distant universe, containing 265,000 galaxies that stretch back through 13.3 billion years of time to just 500 million years after the big bang. The faintest and farthest galaxies are just one ten-billionth the brightness of what the human eye can see. The universe's evolutionary history is also chronicled in this one sweeping view. The portrait shows how galaxies change over time, building themselves up to become the giant galaxies seen in the nearby universe.
This ambitious endeavor, called the Hubble Legacy Field, also combines observations taken by several Hubble deep-field surveys, including the eXtreme Deep Field (XDF), the deepest view of the universe. The wavelength range stretches from ultraviolet to near-infrared light, capturing the key features of galaxy assembly over time.
The video begins with a view of the thousands of galaxies in the Hubble Ultra Deep Field and slowly zooms out to reveal the larger Hubble Legacy Field, containing 265,000 galaxies.
Credits: NASA, ESA, G. Illingworth (University of California, Santa Cruz) and G. Bacon (STScI)
Viaje al fondo del mar: así patrulla el Mar Caribe el submarino ARC Indo...
Por primera vez un medio de comunicación tiene la oportunidad de sumergirse con los hombres que, desde el fondo del mar, protegen a Colombia.
martes, 2 de julio de 2019
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