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Ricardo Daniel González
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Ni una sola hoja cae sin sentido
Ni una sola hoja cae sin sentido

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#ESOjobs The ESO Studentship Programme Chile 2017/2018 is opened for PhD students enrolled in astronomy courses or in related fields. Apply until 31 May 2017 for a studentship position in Chile! Details at http://socsi.in/SwfQz Follow our LinkedIn page to stay up to date with career opportunities at ESO: http://socsi.in/zMkUS Image credit: Clem & Adri Bacri-Normier (wingsforscience.com) / ESO
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Filaments of Active Galaxy NGC 1275
Image Credit: Hubble Legacy Archive, +European Space Agency, ESA, +NASA; Processing & Copyright: Domingo Pestana
https://apod.nasa.gov/apod/ap170405.html

What keeps these filaments attached to this galaxy? The filaments persist in NGC 1275 even though the turmoil of galactic collisions should destroy them. First, active galaxy NGC 1275 is the central, dominant member of the large and relatively nearby Perseus Cluster of Galaxies. Wild-looking at visible wavelengths, the active galaxy is also a prodigious source of x-rays and radio emission. NGC 1275 accretes matter as entire galaxies fall into it, ultimately feeding a supermassive black hole at the galaxy's core. This composite image, recreated from archival Hubble Space Telescope data, highlights the resulting galactic debris and filaments of glowing gas, some up to 20,000 light-years long. Observations indicate that the structures, pushed out from the galaxy's center by the black hole's activity, are held together by magnetic fields. Also known as Perseus A, NGC 1275 spans over 100,000 light years and lies about 230 million light years away.
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Nuestro planeta nos brinda una increíble belleza

Imagen de uno de los ganadores de la sexta edición del International Earth and Sky Photo Contest, un concurso organizado por The World at Night en colaboración con el Global Astronomy Month y el National Optical Astronomy Observatory.

Vía http://tormentasyciudades.blogspot.com.ar
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King of Wings Hoodoo under the Milky Way
Image Credit & Copyright: Wayne Pinkston (LightCrafter Photography)
https://apod.nasa.gov/apod/ap170328.html

This rock structure is not only surreal -- it's real. The reason it's not more famous is that it is, perhaps, smaller than one might guess: the capstone rock overhangs only a few meters. Even so, the King of Wings outcrop, located in New Mexico, USA, is a fascinating example of an unusual type of rock structure called a hoodoo. Hoodoos may form when a layer of hard rock overlays a layer of eroding softer rock. Figuring out the details of incorporating this hoodoo into a night-sky photoshoot took over a year. Besides waiting for a suitably picturesque night behind a sky with few clouds, the foreground had to be artificially lit just right relative to the natural glow of the background. After much planning and waiting, the final shot, featured here, was taken in May 2016. Mimicking the horizontal bar, the background sky features the band of our Milky Way Galaxy stretching overhead.
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A plane that looks its dodging a massive fish that emerges furiously among the waves. #Photography #Pareidolia #Clouds

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Tardigrade in Moss
Image Credit & Copyright: Nicole Ottawa & Oliver Meckes / Eye of Science / Science Source Images
https://apod.nasa.gov/apod/ap170326.html

Is this an alien? Probably not, but of all the animals on Earth, the tardigrade might be the best candidate. That's because tardigrades are known to be able to go for decades without food or water, to survive temperatures from near absolute zero to well above the boiling point of water, to survive pressures from near zero to well above that on ocean floors, and to survive direct exposure to dangerous radiations. The far-ranging survivability of these extremophiles was tested in 2011 outside an orbiting space shuttle. Tardigrades are so durable partly because they can repair their own DNA and reduce their body water content to a few percent. Some of these miniature water-bears almost became extraterrestrials recently when they were launched toward to the Martian moon Phobos on board the Russian mission Fobos-Grunt, but stayed terrestrial when a rocket failed and the capsule remained in Earth orbit. Tardigrades are more common than humans across most of the Earth. Pictured here in a color-enhanced electron micrograph, a millimeter-long tardigrade crawls on moss.
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ALMA helps astronomers observe dust in the most remote galaxy ever observed with the facility. While observing this object, ALMA has also made the most distant detection of oxygen in the Universe. http://socsi.in/tu4m7
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#Barcelona, Spain - a collage created from images taken from on board the International Space Station by ESA astronaut Thomas Pesquet.

Read more about this image and download the image on our website: http://www.esa.int/spaceinimages/Images/2017/03/Barcelona_Big_Picture

Credit: ESA
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Dust, Gas, and Stars in the Orion Nebula
Image Credit: +NASA, +European Space Agency, ESA, Hubble, HLA; Reprocessing & Copyright: Jesús M.Vargas & Maritxu Poyal
https://apod.nasa.gov/apod/ap170308.html

The Great Nebula in Orion, an immense, nearby starbirth region, is probably the most famous of all astronomical nebulas. Here, filaments of dark dust and glowing gas surround hot young stars at the edge of an immense interstellar molecular cloud only 1500 light-years away. In the featured deep image shown in assigned colors, part of the nebula's center is shown as taken by the Hubble Space Telescope. The Great Nebula in Orion can be found with the unaided eye near the easily identifiable belt of three stars in the popular constellation Orion. In addition to housing a bright open cluster of stars known as the Trapezium, the Orion Nebula contains many stellar nurseries. These nurseries contain much hydrogen gas, hot young stars, proplyds, and stellar jets spewing material at high speeds. Also known as M42, the Orion Nebula spans about 40 light years and is located in the same spiral arm of our Galaxy as the Sun.
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