Astronomy news update from NASA : 
Do black holes glow when they collide? When merging, co-orbiting black holes are sure to emit a burst of unusual gravitational radiation, but will they emit light, well before that, if they are surrounded by gas? To help find out, astrophysicists created a sophisticated computer simulation. The simulation and featured resulting video accurately depicts two spiraling supermassive black holes, including the effects of Einstein's general relativity on the surrounding gas and light. The video first shows the system from the top, and later from the side where unusual gravitational lens distortions are more prominent. Numerical results indicate that gravitational and magnetic forces should energize the gas to emit high-energy light from the ultraviolet to the X-ray. The emission of such light may enable humanity to detect and study supermassive black hole pairs well before they spiral together.
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Do black holes glow when they collide? When merging, co-orbiting black holes are sure to emit a burst of unusual gravitational radiation, but will they emit light, well before that, if they are surrounded by gas? To help find out, astrophysicists created a sophisticated computer simulation. The simulation and featured resulting video accurately depicts two spiraling supermassive black holes, including the effects of Einstein's general relativity on the surrounding gas and light. The video first shows the system from the top, and later from the side where unusual gravitational lens distortions are more prominent. Numerical results indicate that gravitational and magnetic forces should energize the gas to emit high-energy light from the ultraviolet to the X-ray. The emission of such light may enable humanity to detect and study supermassive black hole pairs well before they spiral together.
from NASA https://ift.tt/2QDJwjH
via IFTTT
Portrait Of A Planet On The Verge Of Climate Catastrophe via Digg https://ift.tt/2E8Rw6d
Our new 'Word Of The Day' article update : archetype , n :
An original model of which all other similar concepts, objects, or persons are merely copied, derivative, emulated, or patterned; a prototype. An ideal example of something; a quintessence. (literature) A character, object, or story that is based on a known character, object, or story. (psychology) According to Swiss psychologist Carl Jung: a universal pattern of thought, present in an individual's unconscious, inherited from the past collective experience of humanity. (textual criticism) A protograph (“original manuscript of a text from which all further copies derive”).
An original model of which all other similar concepts, objects, or persons are merely copied, derivative, emulated, or patterned; a prototype. An ideal example of something; a quintessence. (literature) A character, object, or story that is based on a known character, object, or story. (psychology) According to Swiss psychologist Carl Jung: a universal pattern of thought, present in an individual's unconscious, inherited from the past collective experience of humanity. (textual criticism) A protograph (“original manuscript of a text from which all further copies derive”).
George HW Bush Dead At 94 via Digg https://ift.tt/2zBy1zv
Our new 'Word Of The Day' article update : sowl , v :
(transitive) To pull (especially an animal) by the ears; to drag about.
(transitive) To pull (especially an animal) by the ears; to drag about.
Hello, Information from NASA The following is a statement from NASA Administrator Jim Bridenstine about the passing of former President George Herbert Walker Bush:
December 01, 2018
from NASA https://ift.tt/2SkPaEr
December 01, 2018
from NASA https://ift.tt/2SkPaEr
