понедельник, 29 октября 2018 г.

2018 October 29 Shells of Stars in Elliptical Galaxy PGC 42871…


2018 October 29


Shells of Stars in Elliptical Galaxy PGC 42871
Image Credit: Hubble Legacy Archive, NASA, ESA; Processing & Copyright: Domingo Pestana


Explanation: How do galaxies grow? To help find out, the Hubble Space Telescope was deployed to image the unusual elliptical galaxy PGC 42871. How this galaxy came to be surrounded by numerous shells of stars may give clues about how it evolved. Embedded in the diffuse shells are massive globular clusters of stars – stars which analyses show were born during three different epochs. This and other data indicate that PGC 42871 has been in at least two galactic collisions, at least one of which might have been with a former spiral galaxy. The remaining spiral galaxy on the far left is at the same distance as PGC 42871 and may have been involved in some of the collisions. PGC 42871 spans about 20 thousand light years and lies about 270 million light years away toward the constellation of Centaurus.


∞ Source: apod.nasa.gov/apod/ap181029.html


The formation of large meteorite craters is unraveled…


The formation of large meteorite craters is unraveled http://www.geologypage.com/2018/10/the-formation-of-large-meteorite-craters-is-unraveled.html


Dechen Cave, Germany…


Dechen Cave, Germany http://www.geologypage.com/2018/10/dechen-cave-germany.html


Cancer Apoptosis! Image of the Week – October 29, 2018CIL:50503…


Cancer Apoptosis! Image of the Week – October 29, 2018


CIL:50503 – http://www.cellimagelibrary.org/images/50503


Description: Apoptosis human melanoma cancer cell.


Author: Lisa Pollaro


Licensing: Copyrighted. This image is copyright protected. Any public or private use of this image is subject to prevailing copyright laws. Please contact the content provider of this image for permission requests.


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Fluorite with Sphalerite | #Geology #GeologyPage…


Fluorite with Sphalerite | #Geology #GeologyPage #Mineral


Locality: Elmwood Mine, Carthage, Smith County, Tennessee, USA, North America


Dimensions: 11.0 × 7.0 × 5.0 cm


Photo Copyright © Crystal Classics


Geology Page

www.geologypage.com

https://www.instagram.com/p/BpfjArbFpxM/?utm_source=ig_tumblr_share&igshid=1n19yz1f98cf3


Amethyst with Calcite | #Geology #GeologyPage…


Amethyst with Calcite | #Geology #GeologyPage #Mineral


Locality: Tonglüshan Mine, Hubei Province, China


Dimensions: 10.0 × 6.7 × 6.0 cm


Photo Copyright © Crystal Classics


Geology Page

www.geologypage.com

https://www.instagram.com/p/BpfjOvcl5pE/?utm_source=ig_tumblr_share&igshid=qjrt91m19wvv


Scorodite | #Geology #GeologyPage #Mineral Locality: Tsumeb…


Scorodite | #Geology #GeologyPage #Mineral


Locality: Tsumeb Mine, Tsumeb, Oshikoto Region (Otjikoto Region), Namibia


Dimensions: 3.2 × 3.0 × 2.2 cm


Photo Copyright © Crystal Classics


Geology Page

www.geologypage.com

https://www.instagram.com/p/Bpfjc4cFngZ/?utm_source=ig_tumblr_share&igshid=nno3gmfbkcav


Dean’s Blue Hole | #Geology #GeologyPage #BlueHole…


Dean’s Blue Hole | #Geology #GeologyPage #BlueHole #Bahamas


Dean’s Blue Hole is said to be the deepest blue hole in the world, and the second largest underwater chamber. Experts at Reeldivers and Vertical Blue, who have done dives at the site, report that: “It is enclosed on three sides by a natural rock amphitheatre, and on the fourth side by a turquoise lagoon and powder white beach. There is never any swell or waves inside the Hole, and visibility is usually between 50 – 100 feet (15 – 30m).”


Read more : http://www.geologypage.com/2016/06/deans-blue-hole.html


Geology Page

www.geologypage.com

https://www.instagram.com/p/Bpfjt0oFMTx/?utm_source=ig_tumblr_share&igshid=1wuolmrofkz1f


Light Painting in Bryn Celli Ddu Prehistoric Burial Chamber, Anglesey, North Wales,...





Light Painting in Bryn Celli Ddu Prehistoric Burial Chamber, Anglesey, North Wales, 28.10.18.


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Disappearing Act When nerves are damaged, a little shock to…


Disappearing Act


When nerves are damaged, a little shock to the system can them help to heal. Stimulating nerve endings with electrical impulses during surgery boosts regeneration, but until recently there was no way to continue this type of therapy as patients recover. Now a team of scientists has designed a paper-thin bioelectronic implant (in silver, with nerves shown in yellow, in the model) wirelessly controlled to deliver regular electrical impulses to injured nerves. In rats, stimulation with this system over several days enhanced regeneration of the sciatic nerve, suggesting that longer-term stimulation can speed up recovery. Remarkably, the device is fully biodegradable, dissolving harmlessly so no second operation is required to remove it, with components that can be adjusted to control how long it stays active for. Next steps include identifying how much stimulation yields maximum benefits, refining a technique that could eventually have far-reaching impacts on the treatment of injury.


Written by Emmanuelle Briolat



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HiPOD (28 October 2018): On the Plains in Erebus Montes    – 298…


HiPOD (28 October 2018): On the Plains in Erebus Montes 


   – 298 km above the surface, less than 5 km across.


NASA/JPL/University of Arizona


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