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LTC Stephen F.
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Belated thank you my friend Maj William W. 'Bill' Price for posting the NASA Astronomy illustration Picture of the Day (AIPOD) for September 8, 2020 entitled "GW190521: Unexpected Black Holes Collide."

Image: GW190521 - Unexpected Black Holes Collide - Illustration Credit - Raúl Rubio (Virgo Valencia Group, The Virgo Collaboration)

APOD Background
"Explanation: How do black holes like this form? The two black holes that spiraled together to produce the gravitational wave event GW190521 were not only the most massive black holes ever seen by LIGO and VIRGO so far, their masses -- 66 and 85 solar masses -- were unprecedented and unexpected. Lower mass black holes, below about 65 solar masses are known to form in supernova explosions. Conversely, higher mass black holes, above about 135 solar masses, are thought to be created by very massive stars imploding after they use up their weight-bearing nuclear-fusion-producing elements. How such intermediate mass black holes came to exist is yet unknown, although one hypothesis holds that they result from consecutive collisions of stars and black holes in dense star clusters. Featured is an illustration of the black holes just before collision, annotated with arrows indicating their spin axes. In the illustration, the spiral waves indicate the production of gravitational radiation, while the surrounding stars highlight the possibility that the merger occurred in a star cluster. Seen last year but emanating from an epoch when the universe was only about half its present age (z ~ 0.8), black hole merger GW190521 is the farthest yet detected, to within measurement errors."


Montreux Jazz Festival 2017 | Chilly Gonzales - Black Hole Sun (Soundgarden cover)
https://www.youtube.com/watch?v=IY30KFTGoYI

FYI Maj Robert Thornton Lt Col Charlie Brown COL Mikel J. Burroughs Sgt (Join to see) PO1 William "Chip" Nagel Maj Bill Smith, Ph.D. Lt Col John (Jack) Christensen SGT Denny Espinosa Sgt Vance Bonds MAJ Dale E. Wilson, Ph.D. TSgt David L. SPC Nancy GreenePO2 Jeffrey Goggin SSG Michael Noll SGT Denny Espinosa SPC Margaret Higgins Capt Marty Hogan TSgt Joe C. TSgt David L.
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Sgt Vance Bonds
Sgt Vance Bonds
1 mo
Darn interesting
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LTC Stephen F.
LTC Stephen F.
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SGT Michael Hearn
SGT Michael Hearn
1 mo
LTC Stephen F. - Beautiful ballad
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Maj William W. 'Bill' Price
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SPC Margaret Higgins
SPC Margaret Higgins
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Maj William W. 'Bill' Price; Good Morning, Most Adored Brother Bill! Dear Bill, I have responded in kind before: I Love Astronomy! And, I Love the Space Program! And, I Love NASA! And, I Love the Constellations!
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Sgt Commander, Dav Chapter #90
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Very interesting!
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