Astronomy news update from NASA : 
What would it look like to orbit a black hole? Many black holes are surrounded by swirling pools of gas known as accretion disks. These disks can be extremely hot, and much of the orbiting gas will eventually fall through the black hole's event horizon -- where it will never been seen again. The featured animation is an artist's rendering of the curious disk spiraling around the supermassive black hole at the center of spiral galaxy NGC 3147. Gas at the inner edge of this disk is so close to the black hole that it moves unusually fast -- at 10 percent of the speed of light. Gas this fast shows relativistic beaming, making the side of the disk heading toward us appear significantly brighter than the side moving away. The animation is based on images of NGC 3147 made recently with the Hubble Space Telescope.
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What would it look like to orbit a black hole? Many black holes are surrounded by swirling pools of gas known as accretion disks. These disks can be extremely hot, and much of the orbiting gas will eventually fall through the black hole's event horizon -- where it will never been seen again. The featured animation is an artist's rendering of the curious disk spiraling around the supermassive black hole at the center of spiral galaxy NGC 3147. Gas at the inner edge of this disk is so close to the black hole that it moves unusually fast -- at 10 percent of the speed of light. Gas this fast shows relativistic beaming, making the side of the disk heading toward us appear significantly brighter than the side moving away. The animation is based on images of NGC 3147 made recently with the Hubble Space Telescope.
from NASA https://ift.tt/2L90BgD
via IFTTT
Our new 'Word Of The Day' article update : gamin , n :
(dated, also attributively) A homeless boy; a male street urchin; also (more generally), a cheeky, street-smart boy.
(dated, also attributively) A homeless boy; a male street urchin; also (more generally), a cheeky, street-smart boy.
Twista's Sign Language Interpreter Absolutely Steals The Show With Her Signing Of His Rapidfire Rap via Digg https://ift.tt/2Nh17M3
Hello, Information from NASA NASA Television and the agency’s website will provide live coverage of the sixth meeting of the National Space Council at 9:30 a.m. EDT Tuesday, Aug. 20, from the Smithsonian National Air and Space Museum’s Steven F. Udvar-Hazy Center in Chantilly, Virginia.
August 19, 2019
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August 19, 2019
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Hello, Information from NASA Media are invited to accompany NASA Administrator Jim Bridenstine, U.S. Senator Rob Portman and U.S. Rep. Marcy Kaptur of Ohio Wednesday, Aug. 21, as they visit the agency’s Glenn Research Center at Lewis Field in Cleveland and Plum Brook Station in Sandusky, Ohio, to view progress on the agency’s Artemis program.
August 19, 2019
from NASA https://ift.tt/2KUbmDk
August 19, 2019
from NASA https://ift.tt/2KUbmDk
