воскресенье, 27 января 2019 г.

2019 January 27 From the Northern to the Southern Cross Image…


2019 January 27


From the Northern to the Southern Cross
Image Credit & Copyright: Nicholas Buer


Explanation: There is a road that connects the Northern to the Southern Cross but you have to be at the right place and time to see it. The road, as pictured here, is actually the central band of our Milky Way Galaxy; the right place, in this case, is dark Laguna Cejar in Salar de Atacama of Northern Chile; and the right time was in early October, just after sunset. Many sky wonders were captured then, including the bright Moon, inside the Milky Way arch; Venus, just above the Moon; Saturn and Mercury, just below the Moon; the Large and Small Magellanic Clouds satellite galaxies, on the far left; red airglow near the horizon on the image left; and the lights of small towns at several locations across the horizon. One might guess that composing this 30-image panorama would have been a serene experience, but for that one would have required earplugs to ignore the continued brays of wild donkeys.


∞ Source: apod.nasa.gov/apod/ap190127.html


Amazing Weird Agate 😮 😍 | #Geology #GeologyPage #Agate…


Amazing Weird Agate 😮 😍 | #Geology #GeologyPage #Agate #Mineral


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Tracking Troublesome Viruses Herpes viruses are troublesome…


Tracking Troublesome Viruses


Herpes viruses are troublesome microbes, causing diseases ranging from cold sores (in the case of herpes simplex virus, HSV) to cancer (Epstein-Barr virus, EBV) while being little more than a strand of DNA packaged inside a protein coat. Viruses can’t replicate themselves, so they need to hijack their host cell’s molecular machinery in order to assemble new viral particles to continue the infection. Once a virus infects a cell – usually a nerve or skin cell – it has to sneak its DNA inside the host cell’s nucleus so it can be copied. Yet little is known about how viruses move around inside cells and take the controls. These red tree-like structures are fluorescently stained nerve cells that have been grown in the lab and infected with HSV (yellow blobs), so that researchers can watch them in action, tracking these molecular troublemakers as they move along nerve fibres to get to the nucleus.


Written by Kat Arney



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Original Lewis Chess Pieces, National Museum of Scotland, Edinburgh, 26.1.19.




Original Lewis Chess Pieces, National Museum of Scotland, Edinburgh, 26.1.19.








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Pictish Symbols and Designs, National Museum of Scotland, Edinburgh, 26.1.19.

Pictish Symbols and Designs, National Museum of Scotland, Edinburgh, 26.1.19.











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